NO118335B - - Google Patents
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- NO118335B NO118335B NO17017167A NO17017167A NO118335B NO 118335 B NO118335 B NO 118335B NO 17017167 A NO17017167 A NO 17017167A NO 17017167 A NO17017167 A NO 17017167A NO 118335 B NO118335 B NO 118335B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YOETUEMZNOLGDB-UHFFFAOYSA-N 2-methylpropyl carbonochloridate Chemical compound CC(C)COC(Cl)=O YOETUEMZNOLGDB-UHFFFAOYSA-N 0.000 claims description 5
- RNFNDJAIBTYOQL-UHFFFAOYSA-N chloral hydrate Chemical compound OC(O)C(Cl)(Cl)Cl RNFNDJAIBTYOQL-UHFFFAOYSA-N 0.000 claims description 4
- 239000003589 local anesthetic agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229960002327 chloral hydrate Drugs 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 230000003444 anaesthetic effect Effects 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 10
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 7
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 6
- 239000005711 Benzoic acid Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 229960004919 procaine Drugs 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- FLXRAHVGFGGXQD-UHFFFAOYSA-N 2-(diethylamino)ethyl 4-[3-[[4-[2-(diethylamino)ethoxycarbonyl]phenyl]carbamoyloxy]propoxycarbonylamino]benzoate Chemical compound C1=CC(C(=O)OCCN(CC)CC)=CC=C1NC(=O)OCCCOC(=O)NC1=CC=C(C(=O)OCCN(CC)CC)C=C1 FLXRAHVGFGGXQD-UHFFFAOYSA-N 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- HCBIBCJNVBAKAB-UHFFFAOYSA-N Procaine hydrochloride Chemical compound Cl.CCN(CC)CCOC(=O)C1=CC=C(N)C=C1 HCBIBCJNVBAKAB-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229960004050 aminobenzoic acid Drugs 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- REQCZEXYDRLIBE-UHFFFAOYSA-N procainamide Chemical compound CCN(CC)CCNC(=O)C1=CC=C(N)C=C1 REQCZEXYDRLIBE-UHFFFAOYSA-N 0.000 description 2
- 229960000244 procainamide Drugs 0.000 description 2
- MFDFERRIHVXMIY-UHFFFAOYSA-N procaine Chemical compound CCN(CC)CCOC(=O)C1=CC=C(N)C=C1 MFDFERRIHVXMIY-UHFFFAOYSA-N 0.000 description 2
- 229960001309 procaine hydrochloride Drugs 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- VWZAGCZUPZKTET-UHFFFAOYSA-N 3-(dibutylamino)propyl 4-aminobenzoate;sulfuric acid Chemical compound OS(O)(=O)=O.CCCCN(CCCC)CCCOC(=O)C1=CC=C(N)C=C1.CCCCN(CCCC)CCCOC(=O)C1=CC=C(N)C=C1 VWZAGCZUPZKTET-UHFFFAOYSA-N 0.000 description 1
- HQFWVSGBVLEQGA-UHFFFAOYSA-N 4-aminobenzoic acid 3-(dibutylamino)propyl ester Chemical compound CCCCN(CCCC)CCCOC(=O)C1=CC=C(N)C=C1 HQFWVSGBVLEQGA-UHFFFAOYSA-N 0.000 description 1
- KKHMQRRQQBALFL-UHFFFAOYSA-N 4-isocyanatobenzoic acid Chemical compound OC(=O)C1=CC=C(N=C=O)C=C1 KKHMQRRQQBALFL-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 208000001871 Tachycardia Diseases 0.000 description 1
- -1 aliphatic alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 150000001348 alkyl chlorides Chemical class 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229960003369 butacaine Drugs 0.000 description 1
- 229960004598 butacaine sulfate Drugs 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- DKAGJZJALZXOOV-UHFFFAOYSA-N hydrate;hydrochloride Chemical class O.Cl DKAGJZJALZXOOV-UHFFFAOYSA-N 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 229960005015 local anesthetics Drugs 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000006794 tachycardia Effects 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Fremgangsmåte for fremstilling av estre og amider av para - amino -benzoesyre. Process for the production of esters and amides of para-amino-benzoic acid.
Blant de forbindelser som benyttes for lokal bedøvelse av para-amino-benzoesyre-estre av lavere alifatiske alkoholer med en tertiær amino-gruppe av særlig betydning. Disse estre benyttes i form av salter, som oftest i form av klorhydrater. I terapien benyttes det dessuten som medikamenter for kardia-arytmi eller takykardi-stoffer som er meget svakt lokalbedøvende og som er avledet av dem som er nevnt ovenfor og hvor estergruppen er erstattet med en amidgruppe. Among the compounds used for local anesthesia are para-amino-benzoic acid esters of lower aliphatic alcohols with a tertiary amino group of particular importance. These esters are used in the form of salts, most often in the form of chlorinated hydrates. In therapy, it is also used as drugs for cardiac arrhythmia or tachycardia substances which are very weak local anesthetics and which are derived from those mentioned above and where the ester group is replaced by an amide group.
Det er likeledes kjent lavere N-karbo-alkoksy-derivater av prokain hvor alkok-sygruppen er CHaO, C2HsO, C3H70 og n-C4H,,0 og som fremstilles ved å reagere alkylkiorkarbonat med prokain-klorhydrat i en vandig oppløsning. There are also known lower N-carbo-alkoxy derivatives of procaine in which the alkoxy group is CHaO, C2HsO, C3H70 and n-C4H,,0 and which are prepared by reacting alkyl chloride with procaine hydrochloride in an aqueous solution.
Videre er det kjent forbindelser med formelen: Furthermore, there are known compounds with the formula:
hvor x er en mettet lineær kullvannstoff-kjede, fortrinnsvis en n-propylen-gruppe (-CH2CH2CH2-). Denne forbindelse er kjent som «tridiurekain». where x is a saturated linear hydrocarbon chain, preferably an n-propylene group (-CH2CH2CH2-). This compound is known as "tridiurecaine".
Det har nå overraskende vist seg at N-karbo-isobutoksy-derivatet av prokain både har en lokalbedøvende overflatevirk-ning som er vesentlig bedre, og en giftig-het som er mindre enn for dets isomere N-karbo-n-butoksyforbindelse. Dette deriva- It has now surprisingly been shown that the N-carbo-isobutoxy derivative of procaine has both a local anesthetic surface effect which is significantly better, and a toxicity which is less than that of its isomeric N-carbo-n-butoxy compound. This deriva-
tet er også, på grunn av disse to egenska- is also, due to these two properties
per langt bedre enn de lavere homologer. Endelig byr N-karbo-isobutoksy-derivatene per far better than the lower homologues. Finally, the N-carbo-isobutoxy derivs
av henholdsvis butakain og av prokainamid liknende uventede fordeler overfor sine isomerer, henholdsvis lavere homologer. of respectively butacaine and of procainamide similar unexpected advantages over their isomers, respectively lower homologues.
Foreliggende oppfinnelse som bygger Present invention that builds
på disse erkjennelser angår en fremgangsmåte for fremstilling av klorhydrater av baser med formelen: to these realizations relates a process for the production of chlorhydrates of bases with the formula:
hvor X er -O- eller -NH-, n er 2 eller 3, R er en lavere alkylgruppe og som har lokal-anestetisk virkning og det særegne består i at isobutylklorkarbonat i vandig miljø bringes til å reagere på i og for seg kjent måte med et salt som er oppløselig i vann, fortrinnsvis klorhydratet eller sulfatet av basen hvoretter det ønskete klorhydrat isoleres fra reaksjonsproduktet. I stedet for å ar-beide i vandig oppløsning kan reaksjonen utføres i nærvær av et inert organisk opp-løsningsmiddel, f. eks. benzen. Karboisobutoksyradikalet kan tilknyt-tes para-aminobenzoesyren, f. eks. ved på kjent måte å omforme p-aminobenzoesyren til p-karboksy-fenyl-isocyanat og ved å bringe dette isocyanat til å reagere med isobutylalkohol og deretter p-(karbo-isobutoksy)-amino-benzoesyren med alkoho-len for å oppnå et prokain- eller butakain-de-rivat som tilsvarer den alminnelige formel som er angitt ovenfor. Videre kan først NH2-gruppen av basen med formel (2) omformes til isocyanat med formelen hvoretter dette isocyanat bringes til å reagere med butyl-aklohol. En sammenligning mellom den tidli-gere kjente forbindelse tridiurekain og en forbindelse i henhold til foreliggende oppfinnelse, nemlig med formelen where X is -O- or -NH-, n is 2 or 3, R is a lower alkyl group and which has a local anesthetic effect and the distinctive feature is that isobutyl chlorocarbonate in an aqueous environment is caused to react in a manner known per se with a salt that is soluble in water, preferably the chloral hydrate or sulfate of the base, after which the desired chloral hydrate is isolated from the reaction product. Instead of working in aqueous solution, the reaction can be carried out in the presence of an inert organic solvent, e.g. benzene. The carboisobutoxy radical can be attached to the para-aminobenzoic acid, e.g. by converting the p-aminobenzoic acid into p-carboxy-phenyl-isocyanate in a known manner and by reacting this isocyanate with isobutyl alcohol and then the p-(carbo-isobutoxy)-amino-benzoic acid with the alcohol to obtain a procaine - or butacain-de-rivate corresponding to the general formula given above. Furthermore, the NH2 group of the base with formula (2) can first be converted to isocyanate with the formula after which this isocyanate is brought to react with butyl alcohol. A comparison between the previously known compound tridiurecaine and a compound according to the present invention, namely with the formula
har vist seg at den sistnevnte forbindelse er 25—30 ganger så kraftig, men bare 4,5 ganger så giftig som tridiurekain som har omtrent samme styrke som prokainhydro-klorid. has shown that the latter compound is 25-30 times as powerful, but only 4.5 times as toxic as tridiurecaine, which has about the same strength as procaine hydrochloride.
Det skal nå gis noen eksempler på hvorledes oppfinnelsen kan utføres. Some examples will now be given of how the invention can be carried out.
Eksempel 1. Example 1.
Klorhydrat av para-(karboisobutoksyamino)benzjoesyre-ip;-dietylamino-etylester. Chlorohydrate of para-(carboisobutoxyamino)benzoic acid ip;-diethylamino-ethyl ester.
Til en oppløsning av 11 g (0,04 grammolekyl) av prokain-klorhydrat i 40 ems vann som var varmet opp til 40—45 °C ble det satt 5,5 g (0,04 grammolekyl isobutylklorkarbonat. To a solution of 11 g (0.04 gram molecule) of procaine chlorohydrate in 40 ems of water that had been heated to 40-45 °C was added 5.5 g (0.04 gram molecule of isobutyl chlorocarbonate.
Denne oppløsning ble rørt mekanisk i 4 timer, og derpå hensatt i isboks natten over uten at noe bunnfall skilte seg ut. This solution was stirred mechanically for 4 hours, and then placed in an ice box overnight without any precipitate separating.
Vannet ble drevet ut på vannbad un-der vakuum, hvoretter den gjenværende glassaktige masse ble malt i 25 ems ko-kende absolutt alkohol. En krystallinsk forbindelse skilte seg ut. The water was expelled on a water bath under vacuum, after which the remaining glassy mass was ground in 25 ems of boiling absolute alcohol. A crystalline compound separated.
Forbindelsen ble hensatt i nye 45 min. i isskap tørket i luften, vasket med absolutt alkohol og derpå tørket i vakuum over fosforsyreanhydrid. The connection was set aside for another 45 min. in an icebox dried in air, washed with absolute alcohol and then dried in vacuum over phosphoric anhydride.
Det ble på denne måten oppnådd 11 g av klorhydratet av para-(karbo-isobutok-syamino)-benzoesyre-(5-dietyl-aminoetyl-ester som etter omkrystallisering i absolutt alkohol på sort «Norit», fremkom i form av et hvitt krystallinsk stoff som var oppløselig i vann, lite oppløselig i kold, men oppløselig i varm alkohol og oppløse-lig i eter. Smp. 144° C. In this way, 11 g of the hydrochloride of para-(carbo-isobutoxy-cyamino)-benzoic acid (5-diethyl-aminoethyl-ester) were obtained which, after recrystallization in absolute alcohol on black "Norit", appeared in the form of a white crystalline substance which was soluble in water, sparingly soluble in cold, but soluble in hot alcohol and soluble in ether, mp 144° C.
Eksempel 2. Example 2.
Klorhydrat av para-(karboisobutoksyamino)-benzoesyre-Y-dibutylamino-pro-pylester. Chlorohydrate of para-(carboisobutoxyamino)-benzoic acid Y-dibutylamino-propyl ester.
Til en oppløsning av 7,1 g (0,01 grammolekyl) av butakain-sulfat i 30 ems vann som er oppvarmet til 50° C ble det satt 2,8 g (0,02 grammolekyl) isobutyl-klorkarbo-nat. To a solution of 7.1 g (0.01 gram molecule) of butacaine sulfate in 30 ems of water heated to 50° C. was added 2.8 g (0.02 gram molecule) of isobutyl chlorocarbonate.
Blandingen ble omrørt mekanisk i to timer. Etter 10. min viste det seg en hvit krystallisert forbindelse i oppløsningen. The mixture was stirred mechanically for two hours. After 10 min, a white crystallized compound appeared in the solution.
Den dannede forbindelse ble tørket i luft, vasket i vann og tørket over fosfor-anhydrid. The compound formed was dried in air, washed in water and dried over phosphoric anhydride.
Det ble oppnådd 7,4 g av et hvitt krystallisert stoff som etter to omkrystallise-ringer i vann smelter ved 163° C. 7.4 g of a white crystallized substance was obtained which, after two recrystallizations in water, melts at 163°C.
Eksempel 3. Example 3.
(3-dietylaminoetylamid-klorhydrat av (3-diethylaminoethylamide chlorohydrate of
para- (karboisobutoksyamino) -benzoesyre. para-(carboisobutoxyamino)-benzoic acid.
Til en oppløsning av 2,75 g (0,01 grammolekyl) prokainamid-klorhydrat i 15 cm» To a solution of 2.75 g (0.01 gram molecule) of procainamide chlorohydrate in 15 cm»
vann som var oppvarmet til 50° C ble det water that had been heated to 50° C became it
satt 1,4 g (0,01 grammolekyl) isobutylklorkarbonat. Det ble foretatt mekanisk added 1.4 g (0.01 gram molecule) of isobutyl chlorocarbonate. It was done mechanically
omrøring av blandingen i to timer hvoretter den ble hensatt i isskap i 4 timer stirring the mixture for two hours, after which it was placed in an icebox for 4 hours
uten at det ble noen bunnfelling. without any settling.
Vannet ble drevet av i vakuum på The water was driven off in a vacuum on
vannbad og den olje som ble tilbake ble water bath and the oil that remained remained
triturert i ca. 20 cm.3 absolutt alkohol. En triturated for approx. 20 cm.3 absolute alcohol. One
krystallinsk forbindelse skilte seg ut. crystalline compound separated.
Forbindelsen ble hensatt i nok en time The connection was delayed for another hour
i isskap, tørket i luften, vasket med abso- in a refrigerator, dried in air, washed with abso-
lutt alkohol og derpå tørket i vakuum over fosforsyreanhydrid. Det ble på denne måten oppnådd 1,35 g (3-dietylaminoetylamid-klorhydrat av para(karboisobutoksy-amino)benzoesyre som, etter rensning ved opp-løsning i litt alkohol og ny utfelling ved hjelp av et stort volum vannfri eter, forelå i form av et hvitt krystallinsk stoff som var oppløselig i vann og alkohol og uopp-løselig i eter. Smp. 157° C. alcohol and then dried in vacuo over phosphoric anhydride. In this way, 1.35 g of (3-diethylaminoethylamide chlorohydrate of para(carboisobutoxy-amino)benzoic acid) was obtained which, after purification by dissolving in a little alcohol and reprecipitating with a large volume of anhydrous ether, was in the form of a white crystalline substance which was soluble in water and alcohol and insoluble in ether, mp 157° C.
På samme måte kan det fremstilles klorhydrater hvis smeltepunkt er angitt i nedenstående tabell, hvor det er benyttet samme betegnelser som i den første formel i innledningen til beskrivelsen. In the same way, chloral hydrates can be prepared whose melting point is indicated in the table below, where the same designations are used as in the first formula in the introduction to the description.
Med utgangspunkt i klorhydratene er Based on the chloride hydrates are
det mulig å frigjøre basene, f. eks. ved be-handling med natriumkarbonat, men de it possible to release the bases, e.g. by treatment with sodium carbonate, but they
fremkommer i form av produkter som ikke appears in the form of products that do not
lar seg destillere. allows itself to be distilled.
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO17017167A NO118335B (en) | 1967-10-18 | 1967-10-18 | |
DK500068A DK120323B (en) | 1967-10-18 | 1968-10-17 | Air purification plant. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO17017167A NO118335B (en) | 1967-10-18 | 1967-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO118335B true NO118335B (en) | 1969-12-15 |
Family
ID=19910265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO17017167A NO118335B (en) | 1967-10-18 | 1967-10-18 |
Country Status (2)
Country | Link |
---|---|
DK (1) | DK120323B (en) |
NO (1) | NO118335B (en) |
-
1967
- 1967-10-18 NO NO17017167A patent/NO118335B/no unknown
-
1968
- 1968-10-17 DK DK500068A patent/DK120323B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DK120323B (en) | 1971-05-10 |
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