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EP1718619A1 - Substituierte pyrazolinverbindungen zur absenkung der triglyceridspiegel im blut - Google Patents

Substituierte pyrazolinverbindungen zur absenkung der triglyceridspiegel im blut

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Publication number
EP1718619A1
EP1718619A1 EP05715327A EP05715327A EP1718619A1 EP 1718619 A1 EP1718619 A1 EP 1718619A1 EP 05715327 A EP05715327 A EP 05715327A EP 05715327 A EP05715327 A EP 05715327A EP 1718619 A1 EP1718619 A1 EP 1718619A1
Authority
EP
European Patent Office
Prior art keywords
optionally
group
branched
linear
disorders
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05715327A
Other languages
English (en)
French (fr)
Inventor
Rosa Cuberes Altisen
Bonifacio Guitierrez Silva
Jordi Frigola-Constansa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Esteve Pharmaceuticals SA
Original Assignee
Laboratorios del Dr Esteve SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP04021974A external-priority patent/EP1637522A1/de
Application filed by Laboratorios del Dr Esteve SA filed Critical Laboratorios del Dr Esteve SA
Priority to EP05715327A priority Critical patent/EP1718619A1/de
Publication of EP1718619A1 publication Critical patent/EP1718619A1/de
Withdrawn legal-status Critical Current

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    • C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
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    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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Definitions

  • the present invention relates to substituted pyrazoline compounds, methods for their preparation, medicaments comprising these compounds as well as their use for the preparation of a medicament for the treatment of humans and animals.
  • Triglycerides are the chemical form in which most fat exists in food as well as in the body. Triglycerides are present in blood plasma and, in association with cholesterol, form the plasma lipids. Triglycerides in blood plasma are derived from fats consumed directly or are synthesized from e.g. carbohydrates. Superfluous food intake is converted to triglycerides and transported to fat cells to be stored. Elevated triglycerides may also be a consequence of disease states, such as untreated diabetes mellitus. Excess of triglycerides in plasma (hypertriglyceridemia) is linked to the occurrence of coronary artery disease and possibly other disorders.
  • the present invention relates to substituted pyrazoline compounds of general formula
  • R 1 represents hydrogen or a linear or branched C ⁇ -4 -alkyl group
  • Preferred linear or branched, saturated or unsaturated aliphatic groups which may be substituted by one or more substituents, may preferably be selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, sec-butyl, tert- butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, vinyl, ethinyl, propenyl, propinyl, butenyl and butinyl.
  • alkyl and cycloalkyl radicals are understood as meaning saturated and unsaturated (but not aromatic), branched, unbranched and cyclic hydrocarbons, which can be unsubstituted or mono- or polysubstituted.
  • C ⁇ - 2 -alkyl represents C1- or C2-alkyl, C ⁇ .
  • 3 -alkyl represents C1-, C2- or C3-alkyl
  • d ⁇ -alkyl represents C1-, C2-, C3- or C4-alkyl
  • C ⁇ -5 -aIkyl represents C1-, C2-, C3-, C4-, or C5-alkyl
  • Ci- 7 -alkyl represents C1-, C2-, C3-, C4-, C5-, C6- or C7-alkyl
  • C 1-8 -alkyl represents C1-, C2-, C3-, C4-, C5-, C6-, C7- or C8-alkyl
  • C ⁇ - ⁇ 0 -alkyl represents C1-, C2-, C3-, C4-, C5-, C6-, C7-, C8-, C9- or C10-alkyl and C ⁇ - ⁇ 8
  • C 3-4 -cycloalkyl represents C3- or C4-cycloalkyl
  • C 3 - 5 - cycloalkyl represents C3-, C4- or C5-cycloalkyl
  • C3-6-cycloalkyl represents C3-, C4-, C5- or C6-cycloalkyl
  • C 3-7 -cycloalkyl represents C3-, C4-, C5-, C6- or C7-cycloalkyl, C 3 .
  • cycloalkyl in respect of cycloalkyl, the term also includes saturated cycloalkyls in which one or 2 carbon atoms are replaced by a heteroatom, S, N or O.
  • mono- or polyunsaturated, preferably monounsaturated, cycloalkyls without a heteroatom in the ring also in particular fall under the term cycloalkyl as long as the cycloalkyl is not an aromatic system.
  • alkyl and cycloalkyl radicals are preferably methyl, ethyl, vinyl (ethenyl), propyl, allyl (2-propenyl), 1-propinyl, methylethyl, butyl, 1- methylpropyl, 2-methylpropyl, 1 ,1-dimethylethyl, pentyl, 1 ,1-dimethylpropyl, 1 ,2- dimethylpropyl, 2,2-dimethylpropyl, hexyl, 1-methylpentyl, cyclopropyl, 2- methylcyclopropyl, cyclopropylmethyl, cyclobutyl, cyclopentyl, cyclopentylmethyl, cyclohexyl, cycloheptyl, cyclooctyl, and also adamantyl, (if substituted also CHF 2 , CF 3 or CH 2 OH) as well as pyrazolinone, oxopyrazol
  • substituted in the context of this invention is understood as meaning replacement of at least one hydrogen radical by F, CI, Br, I, NH 2 , SH or OH
  • Particularly preferred substituents here are, F, CI and OH.
  • the hydrogen radical can also be replaced by OC ⁇ - 3 -alkyl or C ⁇ -3 -alkyl (in each case mono- or polysubstituted or unsubstituted), in particular methyl, ethyl, n-propyl, i-propyl, CF 3 , methoxy or ethoxy.
  • (CH 2 ) 3 . 6 is to be understood as meaning -CH 2 -CH 2 -CH2-, -CH 2 -CH 2 -CH 2 - CH 2 -, -CH 2 -CH 2 -CH 2 -CH 2 - and -CH 2 -CH 2 -CH 2 -CH2-CH2-,
  • (CH 2 ) 1-4 is to be understood as meaning -CH 2 -, -CH 2 -CH 2 -, -CH 2 -CH 2 -CH 2 - and -CH2-CH2-CH2-
  • (CH 2 ) 4 -5 is to be understood as meaning -CH2-CH2-CH2- and -CH 2 -CH 2 -CH 2 -CH 2 - CH 2 -CH 2 -, etc.
  • aryl radical is understood as meaning ring systems with at least one aromatic ring but without heteroatoms even in only one of the rings. Examples are phenyl, naphthyl, fluoranthenyl, fluorenyl, tetralinyl or indanyl, in particular 9H-fluorenyl or anthracenyl radicals, which can be unsubstituted or monosubstituted or polysubstituted.
  • a heteroaryl radical is understood as meaning heterocyclic ring systems which have at least one unsaturated ring and can contain one or more heteroatoms from the group consisting of nitrogen, oxygen and/or sulfur and can also be mono- or polysubstituted.
  • heteroaryls are furan, benzofuran, thiophene, benzothiophene, pyrrole, pyridine, pyrimidine, pyrazine, quinoline, isoquinoline, phthalazine, benzo-1 ,2,5-thiadiazole, benzothiazole, indole, benzotriazole, benzodioxolane, benzodioxane, carbazole and quinazoline.
  • substituted is understood as meaning substitution of the aryl or heteroaryl by R, OR, a halogen, preferably F and/or CI, a CF 3 , a CN, an N0 2 , an NRR, a C ⁇ - 6 -alkyl (saturated), a C ⁇ . 6- alkoxy, a C 3-8 - cycloalkoxy, a C 3-8 -cycloalkyl or a C 2 . 6 -alkylene.
  • salt is to be understood as meaning any form of the active compound used according to the invention in which it assumes an ionic form or is charged and is coupled with a counter-ion (a cation or anion) or is in solution.
  • a counter-ion a cation or anion
  • complexes of trje active compound with other molecules and ions in particular complexes which are complexed via ionic interactions.
  • physiologically acceptable salt means in the context of this invention any salt that is physiologically tolerated (most of the time meaning not being toxic- especially not caused by the counter-ion) if used appropriately for a treatment especially if used on or applied to humans and/or mammals.
  • physiologically acceptable salts can be formed with cations or bases and in the context of this invention is understood as meaning salts of at least one of the compounds used according to the invention - usually a (deprotonated) acid - as an anion with at least one, preferably inorganic, cation which is physiologically tolerated - especially if used on humans and/or mammals.
  • the salts of the alkali metals and alkaline earth metals are particularly preferred, and also those with NH4, but in particular (mono)- or (di)sodium, (mono)- or (di)potassium, magnesium or calcium salts.
  • physiologically acceptable salts can also be formed with anions or acids in the context of this invention is understood as meaning salts of at least one of the compounds used according to the invention - usually protonated, for example on the nitrogen - as the cation with at least one anion which are physiologically tolerated - especially if used on humans and/or mammals.
  • the salt formed with a physiologically tolerated acid that is to say salts of the particular active compound with inorganic or organic acids which are physiologically tolerated - especially if used on humans and/or mammals.
  • physiologically tolerated salts of particular acids are salts of: hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, formic acid, acetic acid, oxalic acid, succinic acid, malic acid, tartaric acid, mandelic acid, fumaric acid, lactic acid or citric acid.
  • solvate is to be understood as meaning any form of the active compound according to the invention in which this compound has attached to it via non-covalent binding another molecule (most likely a polar solvent) especially including hydrates and alcoholates, e.g. methanolate. r Unless otherwise stated, the compounds of the invention are also meant to include compounds which differ only in the presence of one or more isotopically enriched atoms. For example, compounds having the present structures except for the replacement of a hydrogen by a deuterium or tritium, or the replacement of a carbon by 13 C- or 14 C-enriched carbon or 15 N-enriched nitrogen are within the scope of this invention.
  • At least one of R 2 , R 3 or R 4 represents hydrogen, while at least one of R 2 , R 3 or R 4 is different from hydrogen.
  • R 7 represents hydrogen
  • R 2 , R 3 and R 4 independently of each other represent hydrogen, a linear or branched C 1 - 6 - alkyl group, a halogen atom, or CF 3 , preferably R 2 , R 3 and R 4 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 5 and R 6 independently of each other represent a linear or branched C ⁇ -alkyl group, a halogen atom, or CF 3 , preferably R 5 and R 6 independently of each other represent methyl, ethyl, F, CI, Br and CF 3 .
  • R 2 represents a chlorine atom in the 4-position of the phenyl ring, while R 3 and R 4 represent hydrogen.
  • R 5 and R 6 each represent a chlorine atoms in the 2- and 4-position of the phenyl ring, while R 7 represents hydrogen.
  • R 1 represents hydrogen, methyl or; ethyl, preferably hydrogen.
  • the compound of general formula I is represented by a compound of general formula II
  • R 1 represents hydrogen or a linear or branched group
  • R 12 or R 13 independently of each other represent a linear or branched C ⁇ -6 - alkyl group, a linear or branched C ⁇ .6-alkoxy group, a halogen atom, CH 2 F, CHF 2 , CF 3 , CN, OH, N0 2 , SH, NH 2 , hydrogen, methyl, ethyl, F, CI, Br and CF 3 ,
  • R 14 or R 15 independently of each other represent a linear or branched C-. 6 - alkyl group, a linear or branched Ci-e-alkoxy group, a halogen atom, CH 2 F, CHF 2 , CF 3 , CN, OH, N0 2 , SH, NH 2 , methyl, ethyl, F, CI, Br and CF 3 , optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof.
  • R 12 and R 13 independently of each other represent hydrogen, a linear or branched C ⁇ - ⁇ -alkyl group, a halogen atom, or CF 3 , preferably R 12 and R 13 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 14 , and R 15 independently of each other represent a linear or branched C ⁇ . 6 -alkyl group, a halogen atom, or CF 3 , preferably R 14 and R 15 independently of each other represent methyl, ethyl, F, CI, Br and CF 3 .
  • R 13 represents CI and R 12 represents hydrogen.
  • R 14 and R 15 each represent CI.
  • R 1 represents hydrogen, methyl or ethyl, preferably hydrogen.
  • Another preferred embodiment of the invention covers also any prodrug of the compounds of the invention described above as well as any medicament comprising this and any use thereof; especially including their esters and ethers.
  • Examples of well known methods of producing a prodrug of a given acting compound are known to those skilled in the art and can be found e.g. in Krogsgaard-Larsen et al., Textbook of Drugdesign and Discovery, Taylor & Francis (April 2002).
  • Another aspect of the invention is a combination of compounds comprising at least one substituted pyrazoline compound of general formula I
  • R 1 represents hydrogen or a linear or branched C ⁇ . 4 -alkyl group
  • stereoisomers optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof;
  • R 16 represents an optionally at least mono-substituted phenyl group
  • R 17 represents an optionally at least mono-substituted phenyl group
  • R 18 represents a saturated or unsaturated, optionally at least mono- substituted, optionally at least one heteroatom as ring member containing cycloaliphatic group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an optionally at least mono-substituted aryl or heteroaryl group, which may be condensed with an r optionally at least mono-substituted mono- or polycyclic ring system, or an - NR 19 R 20 -moiety,
  • R 19 and R 20 represent a hydrogen atom, an unbranched or branched, saturated or unsaturated, optionally at least mono-substituted aliphatic radical, a saturated or unsaturated, optionally at least mono- substituted, optionally at least one heteroatom as ring member containing cycloaliphatic group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an optionally at least mono-substituted aryl or heteroaryl group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system and/or bonded via a linear or branched alkylene group, an -S0 2 -R 21 -moiety, or an - NR 22 R 23 -moiety, with the proviso that R 19 and R 20 do not identically represent hydrogen,
  • R 21 represents a linear or branched, saturated or unsaturated, optionally at least mono-substituted aliphatic group, a saturated or unsaturated, optionally at least mono-substituted, optionally at least one heteroatom as ring member containing cycloaliphatic group, which may be condensed with a mono- or polycyclic ring-system, or an optionally at least mono-substituted aryl or heteroaryl group, which may be condensed with a mono- or polycyclic ring system and/or bonded via a linear or branched alkylene group,
  • R 22 and R 23 identical or different, represent a hydrogen atom, an unbranched or branched, saturated or unsaturated, optionally at least mono-substituted aliphatic radical, a saturated or unsaturated, optionally at least mono- substituted, optionally at least one heteroatom as ring member containing cycloaliphatic group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an optionally at least mono-substituted aryl or heteroaryl group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system and/or bonded via a linear or branched alkylene group, optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and or diastereomers, in any mixing ratio, or
  • At least one of R 2 , R 3 or R 4 represents hydrogen, while at least one of R 2 , R 3 or R 4 is different from hydrogen.
  • At least on of R 5 , R 6 or R 7 represents hydrogen, while at least one R 5 , R 6 or R 7 is different from hydrogen.
  • R 2 , R 3 and R 4 independently of each other represent hydrogen, a linear or branched C ⁇ -6 -alkyl group, a halogen atom, or CF 3 , preferably R 2 , R 3 and R 4 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 5 , R 6 and R 7 independently of each other represent hydrogen, a linear or branched Ci- ⁇ -alkyl group, a halogen atom, or CF 3 , preferably R 5 , R 6 and R 7 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 2 represents a chlorine atom in the 4-position of the phenyl ring, while R 3 and R 4 represent hydrogen.
  • R 5 and R 6 each represent a chlorine atom in the 2- and 4-position of the phenyl ring, while R 7 represents hydrogen.
  • R 1 represents hydrogen, methyl or ethyl, preferably hydrogen.
  • R 1 represents hydrogen or a linear or branched C ⁇ - -alkyl group
  • R 12 , R 13 , R 14 or R 15 independently of each other represent a linear or branched Ci-e-alkyl group, a linear or branched d- ⁇ -alkoxy group, a halogen atom, CH 2 F, CHF 2 , CF 3 , CN, OH, N0 2 , SH, NH 2 , hydrogen, methyl, ethyl, F, CI, Br and CF 3 , optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof.
  • R 12 and R 13 independently of each other represent hydrogen, a linear or branched C ⁇ -6 -alkyl group, a halogen atom, or CF 3 , preferably R 12 and R 13 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 14 , and R 15 independently of each other represent hydrogen, a linear or branched Ci- ⁇ -alkyl group, a halogen atom, or CF 3 , preferably R 14 and R 15 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 . «,
  • R 13 represents CI and R 12 represents hydrogen.
  • R 14 and R 15 each represent CI.
  • R 1 represents hydrogen, methyl or ethyl, preferably hydrogen.
  • R 17 represents a phenyl group, which is optionally substituted by one or more substituents independently selected from the group consisting of a linear or branched C ⁇ .
  • R 17 represents a phenyl group, which is optionally substituted by one or more substituents independently selected from the group consisting of methyl, ethyl, F, CI, Br and CF 3 , more preferably R 17 represents a phenyl group, which is di-substituted with two chlorine atoms in its 2- and 4-position.
  • R 18 represents a saturated or unsaturated, optionally at least mono-substituted, optionally at least one heteroatom as ring member containing C 3 - 8 cycloaliphatic group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an optionally at least mono-substijuted, 5- or 6-membered aryl or heteroaryl group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an -NR 19 R 20 -moiety, preferably R 18 represents a saturated, optionally at least mono-substituted, optionally one or more nitrogen-atoms as ring member containing C 3 - 8 cycloaliphatic group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an -NR
  • R 19 and R 20 identical or different, represent a hydrogen atom, an unbranched or branched, saturated or unsaturated, optionally at least mono-substituted Ci- ⁇ -aliphatic radical, a saturated or unsaturated, optionally at least mono-substituted, optionally at least one heteroatom as ring member containing C 3 .
  • R 21 represents a linear or branched, saturated or unsaturated, optionally at least mono-substituted C ⁇ -6 aliphatic group, a saturated or unsaturated, optionally at least mono-substituted, optionally at least one heteroatom as ring member containing C3.8 cycloaliphatic group, which may be condensed with a mono- or polycyclic ring-system, or an optionally at least mono- substituted, 5- or 6-membered aryl or heteroaryl group, which may be condensed with a mono- or polycyclic ring system and/or bonded via a methylene (-CH 2 -) or ethylene (-CH 2 -CH 2 )-group, preferably R 21 represents a Ci- ⁇ -alkyl group, a saturated, optionally at least mono-substituted cycloaliphatic group, which may be condensed with a mono- or polycycl
  • R 22 and R 23 represent a hydrogen atom, an unbranched or branched, saturated or unsaturated, optionally at least mono-substituted C ⁇ -6 aliphatic radical, a saturated or unsaturated, optionally at least mono-substituted, optionally at least one heteroatom as ring member containing C 3 - 8 cycloaliphatic group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system, or an optionally at least mono-substituted, 5- or 6 membered aryl or heteroaryl group, which may be condensed with an optionally at least mono-substituted mono- or polycyclic ring system and/or bonded via a methylene (-CH 2 -) or ethylene (-CH 2 -CH 2 )-group, preferably R 22 and R 23 , identical or different,
  • the compound according to general formula X is represented by a structure wherein R 16 represents a phenyl ring, which is mono-substituted with a halogen atom, preferably a chlorine atom, in its 4-position,
  • R 17 represents a phenyl ring, which is di-substituted with two halogen atoms, preferably chlorine atoms, in its 2- and 4-position,
  • R 18 represents a pyrrolidinyl group, a piperidinyl group, a piperazinyl group, a homo-piperazinyl group, a morpholinyl group, or an -NR 19 R 0 -moiety,
  • R 19 represents a hydrogen atom or a linear or branched C ⁇ . 6 -alkyl group
  • R 20 represents a linear or branched C ⁇ - 6 alkyl group, an -S0 2 -R 21 -moiety, a pyrrolidinyl group, a piperidinyl group, a piperazinyl group, a homo-piperazinyl group, a morpholinyl group, a triazolyl group, whereby each of the heterocyclic rings may be substituted with one or more, identical or different, C ⁇ - 6 -alkyl groups, and
  • R 21 represents a phenyl group, which is optionally substituted with one or more C ⁇ - 6 alkyl groups, which may be identical or different, optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof.
  • the present invention also provides a process for the preparation of substituted pyrazoline compounds of general formula I or II, wherein R 1 is hydrogen, given above, in that at least one benzaldehyde compound of general formula III
  • G represents an OR group with R being a branched or unbranched C 1 - 6 alkyl radical or G represents an 0 " K group with K being a cation, preferably an anorganic kation, more preferably an alkali metal kation, most preferably sodium, to yield a compound of general formula (V)
  • R 1 is a linear or branched C ⁇ - -alkyl group.
  • the reaction of the benzaldehyde compound of general formula III with a pyruvate compound of general formula IV is preferably carried out in the presence of at least one base, more preferably in the presence of an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide or an alkali metal methoxide such as sodium methoxide, as described, for example, in Synthetic communications, 26(11), 2229-33, (1996).
  • an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide
  • an alkali metal methoxide such as sodium methoxide
  • Reaction temperature as well as the duration of the reaction may vary over a broad range.
  • Preferred reaction temperatures range from -10 °C to the boiling point of the reaction medium. Suitable reaction times may vary for example from several minutes to several hours.
  • reaction of the benzaldehyde compound of general formula III with a pyruvate compound of general formula IV is carried out under acid catalysed conditions, more preferably by refluxing the mixture in dichloromethane in the presence of copper(ll)trifluoromethanesulfonate as described, for example, in Synlett, (1), 147-149, 2001.
  • acid catalysed conditions more preferably by refluxing the mixture in dichloromethane in the presence of copper(ll)trifluoromethanesulfonate as described, for example, in Synlett, (1), 147-149, 2001.
  • the respective description is hereby incorporated by reference and forms part of the disclosure.
  • reaction of the compound of general formula (V) with an optionally substituted phenyl hydrazin of general formula (VI) is preferably carried out in a suitable reaction medium such as C ⁇ - -alcohols or ethers such as dioxane or tetrahydrofurane or mixtures of at least two of these afore mentioned compounds.
  • a suitable reaction medium such as C ⁇ - -alcohols or ethers such as dioxane or tetrahydrofurane or mixtures of at least two of these afore mentioned compounds.
  • said reaction may be carried out in the presence of an acid, whereby the acid may be organic such as acetic acid and/or inorganic such as hydrochloric acid.
  • reaction may also be carried out in the presence of a base such as piperidine, piperazine, sodium hydroxide, potassium hydroxide, sodium methoxide or sodium ethoxide, or a mixture of at least two of these bases may also be used.
  • a base such as piperidine, piperazine, sodium hydroxide, potassium hydroxide, sodium methoxide or sodium ethoxide, or a mixture of at least two of these bases may also be used.
  • Reaction temperature as well as the duration of the reaction may vary over a broad range. Suitable reaction temperatures range from room temperature, i.e. approximately 25 °C to the boiling point of the reaction medium. Suitable reaction times may vary for example from several minutes to several hours.
  • the carboxylic group of the compound of general formula (VII) may be activated for further reactions by the introduction of a suitable leaving group according to conventional methods well known to those skilled in the art.
  • a suitable leaving group Preferably the compounds of general formula (VII) are transferred into an acid chloride, an acid anhydride, a mixed anhydride, a C alkyl ester, an activated ester such as p- nitrophenylester.
  • Other well known methods for the activation of acids include the activation with N,N-dicyclohexylcarbodiimide or benzotriazol-N- oxotris(dimethylamino) phosphonium hexafluorophosphate (BOP)).
  • said activated compound of general formula (VII) is an acid chloride
  • it is preferably prepared by reaction of the corresponding acid of general formula (VII) with thionyl chloride or oxalyl chloride, whereby said chlorinating agent is also used as the solvent.
  • an additional solvent may be used.
  • Suitable solvents include hydrocarbons such as benzene, toluene or xylene, halogenated hydrocarbons such as dichloromethane, chloroform or carbon tetrachloride, ethers such as diethyl ether, dioxane, tetrahydrofurane or dimethoxyethane. Mixtures of two or more solvents from one class or two or more solvents from different classes may also be used.
  • Preferred reaction temperature range from 0 s C to the boiling point of the solvent and reaction times from several minutes to several hours.
  • said activated compound of general formula (VII) is a mixed anhydride
  • said anhydride may preferably be prepared, for example, by reaction of the corresponding acid of general formula (VII) with ethyl chloroformiate in the presence of a base such as triethylamine or pyridine, in a suitable solvent.
  • the activated compound can be reacted with an alkyl-alcohol to arrive at compounds according to general formulas I or II with R 1 being a a linear or branched C ⁇ -4 -alkyl group.
  • substituted pyrazoline compounds of general formula I or II themselves are obtained in form of a mixture of stereoisomers, particularly enantiomers or diastereomers, said mixtures may be separated by standard procedures known to those skilled in the art, e.g. chromatographic methods or fractionalized crystallization with chiral reagents. It is also possible to obtain pure stereoisomers via stereoselective synthesis.
  • the present invention also provides a process for the preparation of salts of substituted pyrazoline compounds of general formula I or II and stereoisomers thereof, wherein at least one compound of general formula I or II having at least one basic group is reacted with at least one inorganic and/or organic acid, preferably in the presenc ⁇ of a suitable reaction medium.
  • Suitable reaction media include, for example, any of the ones given above.
  • Suitable inorganic acids include hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid, nitric acid
  • suitable organic acids are e.g. citric acid, maleic acid, fumaric acid, tartaric acid, or derivatives thereof, p-toluenesulfonic acid, methanesulfonic acid or camphersulfonic acid.
  • the present invention also provides a process for the preparation of salts of substituted pyrazoline compounds of general formula I or II or stereoisomers thereof, wherein at least one compound of general formula I or II having at least one acidic group is reacted with one or more suitable bases, preferably in the presence of a suitable reaction medium.
  • suitable bases are e.g. hydroxides, carbonates or alkoxides, which include suitable cations, derived e.g. from alkaline metals, alkaline earth metals or organic cations, e.g.
  • reaction media are, for example, any of the ones given above.
  • Solvates, preferably hydrates, of the substituted pyrazoline compounds of general formula I or II, of corresponding stereoisomers, of corresponding N-oxides or of corresponding salts thereof may also be obtained by standard procedures known to those skilled in the art.
  • Substituted pyrazoline compounds of general formula I or II, which comprise nitrogen-atom containing saturated, unsaturated or aromatic rings may also be obtained in the form of their N-oxides by methods well known to those skilled in the art.
  • substituted pyrazoline compounds of general formula I and II given below, their stereoisomers, corresponding N-oxides, corresponding salts thereof and corresponding solvates are toxicologically acceptable and are therefore suitable as pharmaceutical active substances for the preparation of medicaments.
  • substituted pyrazoline compounds of general formula (I) and (II) given below, stereoisomers thereof, N-oxides thereof, corresponding salts and corresponding solvates have the property to regulate triglyceride levels in blood plasma.
  • substituted pyrazoline compounds of general formula X given below stereoisomers thereof, N-oxides thereof, corresponding salts and corresponding solvates have a high affinity to cannabinoid receptors, particularly cannabinoid 1 (CB ⁇ -receptors, i.e. they act as antagonists on these receptors.
  • CBD ⁇ -receptors cannabinoid 1
  • these pyrazoline compounds show litte or no development of tolerance during treatment particularly with respect to food intake. After ending the treatment with the pyrazoline compounds, reduced increase of body weight is found compared to the pre-treatment level.
  • Another aspect of the present invention relates to a Medicament comprising at least one substituted pyrazoline compound of general formula I or II according to the invention and optionally one or more pharmaceutically acceptable excipients.
  • Another aspect of the present invention relates to a Medicament comprising at least one substituted pyrazoline compound of general formula I
  • R 1 represents hydrogen or a linear or branched C ⁇ - 4 -alkyl group
  • At least one of R 2 , R 3 or R 4 represents hydrogen, while at least one of R 2 , R 3 or R 4 is different from hydrogen.
  • At least one of R 5 , R 6 or R 7 represents hydrogen, while at least one R 5 , R 6 or R 7 is different from hydrogen.
  • R 2 , R 3 and R 4 independently of each other represent hydrogen, a linear or branched C ⁇ - 6 -alkyl group, a halogen atom, or CF 3 , preferably R 2 , R 3 and R 4 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 5 , R 6 and R 7 independently of each other represent hydrogen, a linear or branched Ci-e-alkyl group, a halogen atom, or CF 3 , preferably R 5 , R 6 and R 7 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 2 represents a chlorine atom in the 4-position of the phenyl ring, while R 3 and R 4 represent hydrogen.
  • R 5 and R 6 each represent a chlorine atoms in the 2- and 4- position of the phenyl ring, whi e R 7 represents hydrogen.
  • R 1 represents hydrogen, methyl or ethyl, preferably hydrogen.
  • the compound according to formula I is represented by a compound of general formula (II)
  • R 1 represents hydrogen or a linear or branched C ⁇ - 4 -alkyl group
  • R 12 , R 13 , R 14 or R 15 independently of each other represent a linear or branched Ci-e-alkyl group, a linear or branched C ⁇ -6-alkoxy group, a halogen atom, CH 2 F, CHF 2 , CF 3 , CN, OH, N0 2 , SH, NH , hydrogen, methyl, ethyl, F, CI, Br and CF 3 , optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof.
  • R 12 and R 13 independently of each other represent hydrogen, a linear or branched C ⁇ . 6 -alkyl group, a halogen atom, or CF 3 , preferably R 12 and R 13 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 14 , and R 15 independently of each other represent hydrogen, a linear or branched C ⁇ - 6 -alkyl group, a halogen atom, or CF 3 , preferably R 14 and R 15 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 .
  • R 13 represents CI and R 12 represents hydrogen.
  • R 14 and R 15 each represent CI.
  • R 1 represents hydrogen, methyl or ethyl, preferably hydrogen.
  • Another aspect of the invention is a medicament comprising at least one combination of compounds according to the invention and optionally one or more pharmaceutically acceptable excipients.
  • the medicament is for the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of of food intake disorders, preferably bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • the medicament is for the prophylaxis and/or treatment of disorders of the central nervous system, disorders of the immune system, disorders of the cardiovascular system, disorders of the endocrinous system, disorders of the respiratory system, disorders of the gastrointestinal tract or reproductive disorders.
  • the medicament is for the modulation of cannabinoid-receptors, preferably cannabinoid 1 (CBi) receptors, for the prophylaxis and/or treatment of disorders of the central nervous system, disorders of the immune system, disorders of the cardiovascular system, disorders of the endocrinous system, disorders of the respiratory system, disorders of the gastrointestinal tract or reproductive disorders.
  • CBDi cannabinoid 1
  • the medicament is for the prophylaxis and/or treatment of food intake disorders, preferably bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity.
  • food intake disorders preferably bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity.
  • the medicament is for the prophylaxis and/or treatment of psychosis.
  • the medicament is for the prophylaxis and/or treatment of alcohol abuse and/or addiction, nicotine abuse and/or addiction, drug abuse and/or addiction and/or medicament abuse and/or addiction, preferably drug abuse and/or addiction and/or nicotine abuse and/or addiction.
  • the medicament is for the prophylaxis and/or treatment of one or more disorders selected from the group consisting of schizophrenia, anxiety, depression, epilepsy, neurodegenerative disorders, cerebellar disorders, spinocerebellar disorders, cognitive disorders, cranial trauma, panic attacks, peripheric neuropathy, glaucoma, migraine, Morbus Parkinson, Morbus Huntington, Morbus Alzheimer, Raynaud's disease, tremblement disorders, compulsive disorders, senile dementia, thymic disorders, tardive dyskinesia, bipolar disorders; bone disorders including osteoporosis or Paget's disease of bone; cancer, preferably for the prophylaxis and/or treatment of one or more types of cancer selected from the group consisting of brain cancer, bone cancer, lip cancer, mouth cancer, esophageal cancer, stomach cancer, liver cancer, bladder cancer, pancreas cancer, ovary cancer, cervical cancer, lung cancer, breast cancer, skin camcer, colon cancer, bowl cancer and prostate
  • Said medicaments may also comprise any combination of one or more of the substituted pyrazoline compounds of general formula I given above, stereoisomers thereof, corresponding N-oxides thereof, physiologically acceptable salts thereof or physiologically acceptable solvates thereof.
  • medicaments are suitable for the prophylaxis and/or treatment of alcohol abuse, drug abuse and/or medicament abuse, preferably drug abuse and the treatment of obesity.
  • Medicaments and/or drugs which are frequently the subject of misuse include opioids, barbiturates, cannabis, cocaine, amphetamines, phencyclidine, hallucinogens and benzodiazepines.
  • the medicament according to the present invention may be in any form suitable for the application to humans and/or animals, preferably humans including infants, children and adults and can be produced by standard procedures known to those skilled in the art.
  • the composition of the medicament may vary depending on the route of administration.
  • the medicament of the present invention may for example be administered parentally in combination with conventional injectable liquid carriers, such as water or suitable alcohols.
  • conventional pharmaceutical excipients for injection such as stabilizing agents, solubilizing agents, and buffers, may be included in such injectable compositions.
  • These medicaments may for example be injected intramuscularly, intraperitoneally, or intravenously.
  • Solid oral compositions (which are preferred as are liquid ones) may be prepared by conventional methods of blending, filling or tabletting. Repeated blending operations may be used to distribute the active agent throughout those compositions employing large quantities of fillers. Such operations are conventional in the art.
  • the tablets may for example be prepared by wet or dry granulation and optionally coated according to the methods well known in normal pharmaceutical practice., in particular with an enteric coating.
  • Medicaments according to the present invention may also be formulated into orally administrable compositions containing one or more physiologically compatible carriers or excipients, in solid or liquid form. These compositions may contain conventional ingredients such as binding agents, fillers, lubricants, and acceptable wetting agents.
  • the compositio is may take any convenient form, such as tablets, pellets, capsules, lozenges, aqueous or oily solutions, suspensions, emulsions, or dry powdered forms suitable for reconstitution with water or other suitable liquid medium before use, for immediate or retarded release.
  • liquid oral forms for administration may also contain certain additives such as sweeteners, flavoring, preservatives, and emulsifying agents.
  • Non-aqueous liquid compositions for oral administration may also be formulated, containing edible oils. Such liquid compositions may be conveniently encapsulated in e.g., gelatin capsules in a unit dosage amount.
  • compositions of the present invention may also be administered topically or via a suppository.
  • the daily dosage for humans and animals may vary depending on factors that have their basis in the respective species or other factors, such as age, sex, weight or degree of illness and so forth.
  • the daily dosage for humans may preferably be in the range froml to 2000, preferably 1 to 1500, more preferably 1 to 1000 milligrams of active substance to be administered during one or several intakes per day.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I or II according to the invention or at least one combination of compounds according to the invention (and optionally one or more pharmaceutically acceptable excipients), for the preparation of a medicament for the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formaula I or II according to the invention (and optionally one or more pharmaceutically acceptable excipients,) for the preparation of a medicament for the prophylaxis and/or treatment of disorders of the central nervous system, disorders of the immune system, disorders of the cardiovascular system, disorders of the endocrinous system, disorders of the respiratory system, disorders of the gastrointestinal tract or reproductive disorders.
  • Another preferred aspect of the invention is the use of at least one combination of compounds according to the invention (and optionally one or more pharmaceutically acceptable excipients,) for the preparation of a medicament for the modulation of cannabinoid-receptors, preferably cannabinoid 1 (CBi) receptors, for the prophylaxis and/or treatment of disorders of the central nervous system, disorders of the immune system, disorders of the cardiovascular system, disorders of the endocrinous system, disorders of the respiratory system, disorders of the gastrointestinal tract or reproductive disorders.
  • cannabinoid-receptors preferably cannabinoid 1 (CBi) receptors
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I or II according to the invention or at least one combination of compounds according to the invention (and optionally one or more pharmaceutically acceptable excipients), for the preparation of a medicament for the prophylaxis and/or treatment of food intake disorders, preferably bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I or II according to the invention or at least one combination of compounds according to the invention (and optionally one or more pharmaceutically acceptable excipients), for the preparation of a medicament for the prophylaxis and/or treatment of psychosis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I or li according to the invention or at least one combination of compounds according to the invention (and optionally one or more pharmaceutically acceptable excipients), for the preparation of a medicament for the prophylaxis and/or treatment of alcohol abuse and/or addiction, nicotine abuse and/or addiction, medicament abuse and/or addiction and/or drug abuse and/or addiction, preferably drug abuse and/or addiction or nicotine abuse and/or addiction.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I or II according to the invention or at least one combination of compounds according to the invention (and optionally one or more pharmaceutically acceptable excipients), for the preparation of a medicament for the prophylaxis and/or treatment of one or more disorders selected from the group consisting of schizophrenia, anxiety, depression, epilepsy, neurodegenerative disorders, cerebellar disorders, spinocerebellar disorders, cognitive disorders, cranial trauma, panic attacks, peripheric neuropathy, glaucoma, migraine, Morbus Parkinson, Morbus Huntington, Morbus Alzheimer, Raynaud's disease, tremblement disorders, compulsive disorders, senile dementia, thymic disorders, tardive dyskinesia, bipolar disorders; bone disorders including osteoporosis or Paget's disease of bone; cancer, preferably for the prophylaxis and/or treatment of one or more types of cancer selected from the group consisting of brain cancer, bone cancer, lip cancer, mouth cancer
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of general formula I
  • R 1 represents hydrogen or a linear or branched C ⁇ - 4 -alkyl group
  • the stereoisomers optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemjate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof; and optionally one or more pharmaceutically acceptable excipients, for the preparation of a medicament for the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use for the manufacture of a medicament of at least one substituted pyrazoline compound of formula I for which at least one of R 2 , R 3 or R 4 represents hydrogen, while at least one of R 2 , R 3 or R 4 is different from hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I for which at least on of R 5 , R 6 or R 7 represents hydrogen, while at least one R 5 , R 6 or R 7 is different from hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formuja I for which R 2 , R 3 and R 4 independently of each other represent hydrogen, a linear or branched Ci-e-alkyl group, a halogen atom, or CF 3 , preferably R 2 , R 3 and R 4 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I for which R 5 , R 6 and R 7 independently of each other represent hydrogen, a linear or branched C ⁇ - 6 -alkyl group, a halogen atom, or CF 3 , preferably R 5 , R 6 and R 7 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • R 5 , R 6 and R 7 independently of each other represent hydrogen, a linear or branched C ⁇ - 6 -alkyl group, a halogen
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I for which R 2 represents a chlorine atom in the 4- position of the phenyl ring, while R 3 and R 4 represent hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I for which R 5 and R 6 each represent a chlorine atoms in the 2- and 4-position of the phenyl ring, while R 7 represents hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula I for which R 1 represents hydrogen, methyl or ethyl, preferably hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred aspect of the invention is the use of at least one substituted pyrazoline compound of formula wherein the compound of general formula (I) is represented by a compound of general formula (II)
  • R 1 represents hydrogen or a linear or branched CM-alkyl group
  • R 12 , R 13 , R 14 or R 15 independently of each other represent a linear or branched Ci-e-alkyl group, a linear or branched C 1-6 -alkoxy group, a halogen atom, CH 2 F, CHF 2 , CF 3 , CN, OH, N0 2 , SH, NH 2 , hydrogen, methyl, ethyl, F, CI, Br and CF 3 , optionally in form of one of the stereoisomers, preferably enantiomers or diastereomers, a racemate or in form of a mixture of at least two of the stereoisomers, preferably enantiomers and/or diastereomers, in any mixing ratio, or a corresponding N-oxide thereof, or a corresponding salt thereof, or a corresponding solvate thereof for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous
  • Another embodiment of the invention is the use of at least one substituted pyrazoline compound of formula II for which R 12 and R 13 independently of each other represent hydrogen, a linear or branched C ⁇ - 6 -alkyI group, a halogen atom, or CF 3 , preferably R 12 and R 13 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 forthe manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another embodiment of the invention is the use of at least one substituted pyrazoline compound of formula II for which R 14 , and R 15 independently of each other represent hydrogen, a linear or branched Ci-e-alkyl group, a halogen atom, or CF 3 , preferably R 14 and R 15 independently of each other represent hydrogen, methyl, ethyl, F, CI, Br and CF 3 for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another embodiment of the invention is the use of at least one substituted pyrazoline compound of formula II for which R 13 represents CI and R 2 represents hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred embodiment of the invention is the use of at least one substituted pyrazoline compound of formula II for which R 14 and R 5 each represent CI for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another preferred embodiment of the invention is the use of at least one substituted pyrazoline compound of formula II for which R 1 represents hydrogen, methyl or ethyl, preferably hydrogen for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Another embodiment of the invention is the use of at least one substituted pyrazoline compound of formula I or II for which the compound according to formulas I or II is selected from the group consisting of:
  • a medicament for the manufacture of a medicamentfor the regulation of triglyceride levels in the blood plasma and for the prophylaxis and/or treatment of disorders of disorders of the central nervous system, especially stroke, of disorders of the cardiovascular system and of food intake disorders, especially bulimia, anorexia, cachexia, obesity, type II diabetus mellitus (non-insuline dependent diabetes mellitus), preferably obesity and diabetis.
  • Example 0 represent a compound according to formula I or II.
  • step a) 4-(4-chlorophenyl)-2-oxo-3-butenoic acid obtained according to step a) (12.6 g, 60 mmoles), 2,4-dichlorophenylhydrazine hydrochloride (12.8 g, 60 mmoles) and glacial acetic acid (200 mL) were mixed under a nitrogen atmosphere and heated to reflux for 4 hours, cooled down to room temperature (approximately 25 °C) and given into ice-water, whereby a sticky mass was obtained, which was extracted with methylene chloride. The combined methylene chloride fractions were washed with water, dried with sodium sulfate, filtered and evaporated to dryness to give a pale yellow solid (12.7 g, 57% of theoretical yield).
  • Example 1 represents compounds according to formula X.
  • Example 1 represents compounds according to formula X.
  • N-aminopiperidine (0.6 mL, 5.6 mmoles) and triethylamine (4 mL) were dissolved in methylene chloride (25 mL).
  • methylene chloride 25 mL
  • the resulting mixture was ice-cooled down to 0°C and a solution of 5-(4-chlorophenyl)-1 -(2,4- dichlorophenyl)-4,5-dihydro-pyrazole-3-carboxylic acid chloride obtained in step (c) in methylene chloride (15 mL) was added dropwise.
  • the resulting reaction mixture was stirred at room temperature (approximately 25 °C) overnight.
  • This compound was obtained in form of an oil.
  • This compound was obtained in form of an amorph solid.
  • N-piperidinyl-5-(4-chlorophenyl)-1-(2,4- dichlorophenyl)-4,5-dihydropyrazole-3-carboxamide (0,15 g, 332 mmoles) was dissolved in 7 ml of dichloromethane. The resulting solution was ice-cooled to 0 °C and m-chloroperbenzoic acid (0,204 g, 0,83 mmoles) added in several portions. After stirring for 15 minutes a control via thin layer chromatography showed that no starting material was remaining. A saturated solution of sodium bicarbonate was then slowly added, the organic phase separated, washed with water, dried over sodium sulfate and filtered.
  • the compound according to example 0 is an inhibitor of high blood levels of triglicerides. This effect has been probed in obese mice fed with high fat diet. In the following paragraphs it is described the method and the results obtained in this study.
  • mice B6 Lep ob/ob obtained from Charles River (France). Mice were divided in 3 groups : I (control), II (vehicle), III (example 0).
  • the animals of the groups II and III were fed with a High Fat Diet (D-12492, Research Diets, NJ, USA), in both cases for 7 weeks (References 1 and 2).
  • the animals of the groups III were fed with a High Fat Diet (D-12492, Research Diets, NJ, USA), in both cases for 7 weeks (References 1 and 2).
  • mice received the vehicle (10 ml/kg/day, po, of the aqueous solution of acacia gum, 5% W/V).
  • Group III was administered with 30 mg/kg/day, po, of the inventive compound 5-(4-chlorophenyl)-1 -(2,4-dichlorophenyl)-4,5-dihydro-pyrazole- 3-carboxylic acid according to Example 0.
  • Group I didn't received any treatment. The three groups of mice had the same diet than in the previous period.
  • the blood levels of triglicerides of the animals were determined.
  • the analysis of the whole blood samples was done using test strips "Lipid panel” and the photometric Analyzer Cardio-Check Test System, from PA Instruments Polymer Technology Systems Indianapolis, IN-46268, USA (Distributed in Spain by Novalab Iberica S.A.L, Madrid, Spain).
  • Figure 1 shows the clear reduction of triglyceride levels in blood plasma.
  • the level (Group III) returns to the control level of Group I compared to the clearly raised levels found in the Group II without the treatment with the compound according to Example 0.
  • mice receiving a high fat diet were - after a feeding period of 6 days - either treated p.o. with vehicle (0,5 % HPMC) or with the compound according to example 0 (30 mg/kg/day p.o.).
  • TG levels in blood were determined on day 28 after beginning of the treatment.
  • TG (triglyceride) levels were 1.28 ⁇ 25 mmoles/l in the group treated with vehicle and only 0.80 ⁇ 0.07 mmoles/l in the group treated with the inventive compound 5-(4- chlorophenyl)-1-(2,4-dichlorophenyl)-4,5-dihydro-pyrazole-3-carboxylic acid according to Example 0.
  • the results were statistically highly significant with an ANOVA factorial, Fisher ' s post-hoc test of ** * p ⁇ 0.005 vs. vehicle.

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EP05715327A 2004-02-17 2005-02-14 Substituierte pyrazolinverbindungen zur absenkung der triglyceridspiegel im blut Withdrawn EP1718619A1 (de)

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TW200533657A (en) * 2004-02-17 2005-10-16 Esteve Labor Dr Substituted pyrazoline compounds, their preparation and use as medicaments
WO2007009701A2 (en) * 2005-07-15 2007-01-25 Laboratorios Del Dr. Esteve, S.A. Use of substituted pyrazole compounds and combinations thereof for the treatment of the metabolic syndrome
EP1743639A1 (de) * 2005-07-15 2007-01-17 Laboratorios Del Dr. Esteve, S.A. Verwendung substituierter Pyrazolinderivate zur Behandlung von Krankheiten im Zusammenhang mit Blutgerinnung
WO2007009700A2 (en) * 2005-07-15 2007-01-25 Laboratorios Del Dr. Esteve, S.A. Use of substituted pyrazoline compounds for the treatment of the lipid parameters of the metabolic syndrome
WO2007009706A2 (en) * 2005-07-15 2007-01-25 Laboratorios Del Dr. Esteve, S.A. Substituted pyrazoline compounds, having predetermined stereochemistry, for reducing triglycerides in blood
WO2007009683A2 (en) * 2005-07-15 2007-01-25 Laboratorios Del Dr.Esteve, S.A. Pharmaceutical formulations of substituted pyrazoline compounds
EP1743889A1 (de) * 2005-07-15 2007-01-17 Laboratorios del Dr. Esteve S.A. Substituierte Pyrazoline mit vorbestimmter Stereochemie zur Senkung von Triglyceriden im Blut
EP1749527A1 (de) * 2005-07-15 2007-02-07 Laboratorios Del Dr. Esteve, S.A. Verwendung substituierter Pyrazolinderivate zur Behandlung des metabolischen Syndroms
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WO2007009698A1 (en) * 2005-07-15 2007-01-25 Laboratorios Del Dr. Esteve, S.A Combination of pyrazoline type cannabinoid receptor antagonist and statin
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