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HN1998000187A - Proceso para la sintesis de 1,3-dioles - Google Patents

Proceso para la sintesis de 1,3-dioles

Info

Publication number
HN1998000187A
HN1998000187A HN1998000187A HN1998000187A HN1998000187A HN 1998000187 A HN1998000187 A HN 1998000187A HN 1998000187 A HN1998000187 A HN 1998000187A HN 1998000187 A HN1998000187 A HN 1998000187A HN 1998000187 A HN1998000187 A HN 1998000187A
Authority
HN
Honduras
Prior art keywords
dialkylalkoxyborane
trialkylborane
cis
combination
dioles
Prior art date
Application number
HN1998000187A
Other languages
English (en)
Inventor
Joseph Mc Cabe Richard
Norman Nanninga Thomas
Original Assignee
Warner Lambert Co
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
Application filed by Warner Lambert Co filed Critical Warner Lambert Co
Publication of HN1998000187A publication Critical patent/HN1998000187A/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/30Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/34Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two 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
    • C07D207/36Oxygen or sulfur atoms
    • C07D207/402,5-Pyrrolidine-diones
    • C07D207/4162,5-Pyrrolidine-diones 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 other ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B41/00Formation or introduction of functional groups containing oxygen
    • C07B41/02Formation or introduction of functional groups containing oxygen of hydroxy or O-metal groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00Preparation of carboxylic acid nitriles
    • C07C253/30Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • C07C255/01Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/19Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton
    • C07C255/20Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • C07C255/01Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/19Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton
    • C07C255/21Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton the carbon skeleton being further substituted by doubly-bound oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/30Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/34Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B2200/00Indexing scheme relating to specific properties of organic compounds
    • C07B2200/07Optical isomers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)
  • Pyrrole Compounds (AREA)

Abstract

UN PROCESO DE MEJORA DE LA PREPARACIÓN DEL CIS 1,3-dioles DONDE SE DESCRIBE A BETA hidroxicetona se trata con un trialquilborano O dialquilalcoxiborano O LA COMBINACIÓN DE UN TRIALKYBORANE O LA COMBINACIÓN DE UN trialquilborano Y UN dialquilalcoxiborano seguida de la recuperación y la reutilización de alquilborano ESPECIES PARA CONVERTIR BETA ADICIONAL hidroxi cetona al CIS-1 ,3-diol.
HN1998000187A 1997-12-19 1998-12-09 Proceso para la sintesis de 1,3-dioles HN1998000187A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6819397P 1997-12-19 1997-12-19

Publications (1)

Publication Number Publication Date
HN1998000187A true HN1998000187A (es) 1999-10-22

Family

ID=22081016

Family Applications (1)

Application Number Title Priority Date Filing Date
HN1998000187A HN1998000187A (es) 1997-12-19 1998-12-09 Proceso para la sintesis de 1,3-dioles

Country Status (31)

Country Link
US (4) US6433213B1 (es)
EP (1) EP1054860B1 (es)
JP (1) JP2001526256A (es)
KR (2) KR100668575B1 (es)
AR (1) AR014943A1 (es)
AT (1) ATE360608T1 (es)
AU (1) AU755543B2 (es)
BR (1) BR9813760A (es)
CA (1) CA2305618C (es)
CO (1) CO4990941A1 (es)
CU (1) CU22939A3 (es)
CY (1) CY1106612T1 (es)
DE (1) DE69837681T2 (es)
DK (1) DK1054860T3 (es)
ES (1) ES2284219T3 (es)
GT (2) GT199800197AA (es)
HN (1) HN1998000187A (es)
HU (1) HUP0100252A3 (es)
IL (1) IL135562A (es)
IS (1) IS5447A (es)
MY (1) MY118726A (es)
NO (1) NO20003139D0 (es)
NZ (1) NZ504346A (es)
PA (1) PA8464901A1 (es)
PE (1) PE20000136A1 (es)
PL (1) PL193678B1 (es)
PT (1) PT1054860E (es)
SV (1) SV1998000153A (es)
TW (1) TW444000B (es)
WO (1) WO1999032434A1 (es)
ZA (1) ZA9811586B (es)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2391357C (en) 1999-12-17 2009-01-06 Warner Lambert Research And Development Ireland Limited A process for producing crystalline atorvastatin calcium
MXPA02004078A (es) 1999-12-17 2002-10-11 Warner Lambert Res & Dev Un proceso a escala industrial para producir sal de hemi calcio de trihidrato de atorvastatin cristalino.
US20040014195A1 (en) * 1999-12-29 2004-01-22 Diversa Corporation Nitrilases, nucleic acids encoding them and methods for making and using them
US7608445B1 (en) 1999-12-29 2009-10-27 Verenium Corporation Nitrilases, nucleic acids encoding them and methods for making and using them
US7300775B2 (en) * 1999-12-29 2007-11-27 Verenium Corporation Methods for producing α-substituted carboxylic acids using nitrilases and strecker reagents
US7521216B2 (en) * 1999-12-29 2009-04-21 Verenium Corporation Nitrilases and methods for making and using them
MXPA03009095A (es) * 2001-04-05 2004-02-12 Nissan Chemical Ind Ltd Metodo para preparar 7-quinolinil-3,5-dihidroxihept-6-enoato.
IL159719A0 (en) 2001-07-06 2004-06-20 Teva Pharma Process for the preparation of 7-amino syn 3,5-dihydroxy heptanoic acid derivatives via 6-cyano syn 3,5-dihydroxy hexanoic acid derivatives
CZ2004158A3 (cs) * 2001-07-06 2005-01-12 Teva Pharmaceutical Industries Ltd. Syntéza a meziprodukty derivátů 3,5-dihydroxyheptanové kyseliny
GB0211715D0 (en) * 2002-05-22 2002-07-03 Phoenix Chemicals Ltd Process
US7932064B2 (en) * 2002-06-13 2011-04-26 Verenium Corporation Processes for making (R)-ethyl 4-cyano-3-hydroxybutyric acid
JP4578240B2 (ja) * 2002-08-09 2010-11-10 コデクシス, インコーポレイテッド 4−置換3−ヒドロキシ酪酸誘導体の生成のための酵素的プロセス
PT1631533E (pt) * 2003-04-22 2009-06-04 Biocon Ltd Novo processo para a redução estereosselectiva de betacetoésteres
US7790197B2 (en) * 2003-06-09 2010-09-07 Warner-Lambert Company Llc Pharmaceutical compositions of atorvastatin
US20050271717A1 (en) 2003-06-12 2005-12-08 Alfred Berchielli Pharmaceutical compositions of atorvastatin
US7655692B2 (en) * 2003-06-12 2010-02-02 Pfizer Inc. Process for forming amorphous atorvastatin
US20040253305A1 (en) * 2003-06-12 2004-12-16 Luner Paul E. Pharmaceutical compositions of atorvastatin
US7588928B2 (en) * 2003-08-11 2009-09-15 Codexis, Inc. Halohydrin dehalogenases and related polynucleotides
CA2533838A1 (en) * 2003-08-11 2005-02-24 Codexis, Inc. Improved ketoreductase polypeptides and related polynucleotides
KR20060064620A (ko) * 2003-08-11 2006-06-13 코덱시스, 인코포레이티드 개선된 글루코스 데히드로게나제 폴리펩티드 및 관련폴리뉴클레오티드
EP1660669A4 (en) * 2003-08-11 2008-10-01 Codexis Inc ENZYMATIC PROCEDURES FOR THE PREPARATION OF 4-SUBSTITUTED 3-HYDROXYBUTYLIC ACID DERIVATIVES AND OF VICINAL CYANO, HYDROXY-SUBSTITUTED CARBOXYLIC ACID ESTERS
US7541171B2 (en) * 2003-08-11 2009-06-02 Codexis, Inc. Halohydrin dehalogenases and related polynucleotides
US7824898B2 (en) * 2003-08-11 2010-11-02 Codexis, Inc. Halohydrin dehalogenases and related polynucleotides
CN101318923A (zh) * 2003-09-17 2008-12-10 沃尼尔·朗伯有限责任公司 [R-(R*,R*)]-2-(4-氟苯基)-β,δ-二羟基-5-(1-甲基乙基)-3-苯基-4-[(苯基氨基)羰基]-1H-吡咯-1-庚酸的结晶形式
US7557238B2 (en) * 2003-09-18 2009-07-07 Biocon Limited Process for the preparation of tert-butyl 6-cyano-5-hydroxy-3-oxohexanoate
US7851624B2 (en) * 2003-12-24 2010-12-14 Teva Pharamaceutical Industries Ltd. Triol form of rosuvastatin and synthesis of rosuvastatin
WO2005063728A2 (en) * 2003-12-24 2005-07-14 Teva Pharmaceutical Industries Ltd. Process for preparation of statins with high syn to anti ratio
CA2562844A1 (en) * 2004-04-16 2005-10-27 Pfizer Products Inc. Process for forming amorphous atorvastatin calcium
CA2564030C (en) 2004-05-05 2010-06-08 Pfizer Products Inc. Salt forms of [r-(r*, r*)]-2-(4-fluorophenyl)-.beta., .delta.-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1h-pyrrole-1-heptanoic acid
AU2005263550C1 (en) * 2004-07-16 2013-01-17 Lek Pharmaceuticals D.D. Oxidative degradation products of atorvastatin calcium
WO2006011041A2 (en) 2004-07-20 2006-02-02 Warner-Lambert Company Llc Crystalline forms of (r-(r*))-2-(4-fluorophenyl)-beta, gamma-dihydroxy-5-(1-methylethyl)-3-phenyl-4-((phenylamino)carbonyl)-1h-pyrrole-1-hept anoic acid calcium salt (2:1)
RU2007115543A (ru) * 2004-10-28 2008-12-10 Уорнер-Ламберт Компани Эл-Эл-Си (US) Способ получения аморфного аторвастатина
EP1819681B1 (en) 2004-11-23 2009-08-12 Warner-Lambert Company LLC 7-(2h-pyrazol-3-yl)-3,5-dihydroxy-heptanoic acid derivatives as hmg co-a reductase inhibitors for the treatment of lipidemia
JP2008521878A (ja) * 2004-12-02 2008-06-26 ワーナー−ランバート カンパニー リミテッド ライアビリティー カンパニー 非晶質アトルバスタチンの医薬組成物及びその製造のための方法
WO2007029216A1 (en) * 2005-09-09 2007-03-15 Pfizer Science And Technology Ireland Limited Preparation of an atorvastatin intermediate
US20090221852A1 (en) * 2005-09-09 2009-09-03 Pfizer Inc. Preparation of an Atorvastatin Intermediate
CA2547216A1 (en) 2005-09-21 2007-03-21 Renuka D. Reddy Process for annealing amorphous atorvastatin
DE602006014193D1 (de) 2005-11-21 2010-06-17 Warner Lambert Co Neue formen von är-(r*,r*)ü-2-(4-fluorphenyl)-b,d-dihydroxy-5-(1-methylethyl)-3-phenyl-4-ä(phenylamino)carbonylü-1h-pyrrol-1-heptansäure-magnesium
US7879585B2 (en) 2006-10-02 2011-02-01 Codexis, Inc. Ketoreductase enzymes and uses thereof
WO2008106662A2 (en) 2007-03-01 2008-09-04 Verenium Corporation Nitrilases, nucleic acids encoding them and methods for making and using them
WO2009137691A2 (en) * 2008-05-09 2009-11-12 The Scripps Research Institute 1,3-diol synthesis via controlled, radical-mediated c-h functionalization
EP2379713A4 (en) 2008-12-18 2013-07-10 Codexis Inc RECOMBINANT HALOHYDRIN DEHALOGENASE POLYPEPTIDES
WO2010069593A1 (en) 2008-12-19 2010-06-24 Krka, D. D., Novo Mesto Use of amphiphilic compounds for controlled crystallization of statins and statin intermediates
EP2327682A1 (en) 2009-10-29 2011-06-01 KRKA, D.D., Novo Mesto Use of amphiphilic compounds for controlled crystallization of statins and statin intermediates
US9273158B2 (en) 2011-05-16 2016-03-01 The Regents Of The University Of California Methods for production of hydrocarbons and oxygen-containing hyrdrocarbons
US20140335179A1 (en) 2011-07-01 2014-11-13 Dsm Sinochem Pharmaceuticals Netherlands B.V. Micronized crystals of atorvastatin hemicalcium
CN108033899B (zh) * 2017-12-06 2020-04-10 浙江科技学院 一种(r)-6-氰基-5-羟基-3-羰基己酸叔丁酯的制备方法
CN111978286A (zh) * 2020-08-21 2020-11-24 江苏万年长药业有限公司 一种制备ats-8的方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR64043B (en) 1977-10-01 1980-01-19 Expansia Sa Borane complexes
DE2912708A1 (de) 1979-03-30 1980-10-09 Basf Ag Datenspeichersystem und magnetscheiben dafuer
US5169857A (en) * 1988-01-20 1992-12-08 Bayer Aktiengesellschaft 7-(polysubstituted pyridyl)-hept-6-endates useful for treating hyperproteinaemia, lipoproteinaemia or arteriosclerosis
US5354772A (en) 1982-11-22 1994-10-11 Sandoz Pharm. Corp. Indole analogs of mevalonolactone and derivatives thereof
US4645854A (en) * 1985-04-25 1987-02-24 Merck & Co., Inc. Process for preparing HMG-CoA reductase inhibitors with a 3,5-dihydroxypentanoate subunit
US4898949A (en) * 1987-02-25 1990-02-06 Bristol-Myers Company Intermediates for the preparation of antihypercholesterolemic tetrazole compounds
US4897490A (en) * 1987-02-25 1990-01-30 Bristol-Meyers Company Antihypercholesterolemic tetrazole compounds
DE3741509A1 (de) 1987-12-08 1989-06-22 Hoechst Ag Verfahren zur herstellung optisch aktiver 3-desmethylmevalonsaeurederivate sowie zwischenprodukte
US5001144A (en) * 1987-12-21 1991-03-19 Rhone-Poulenc Rorer Pharmaceuticals Inc. Substituted cyclohexene derivatives as HMG-CoA reductase inhibitors
US5003080A (en) * 1988-02-22 1991-03-26 Warner-Lambert Company Process for trans-6-(2-(substituted-pyrrol-1-yl)alkyl)pryan-2-one inhibitors of cholesterol synthesis
FR2642065B1 (fr) * 1989-01-24 1991-05-24 Lipha Derives d'acides benzocycloalcenyl dihydroxy alcanoiques, procede de preparation et medicaments les contenant
FI94339C (fi) * 1989-07-21 1995-08-25 Warner Lambert Co Menetelmä farmaseuttisesti käyttökelpoisen /R-(R*,R*)/-2-(4-fluorifenyyli)- , -dihydroksi-5-(1-metyylietyyli)-3-fenyyli-4-/(fenyyliamino)karbonyyli/-1H-pyrroli-1-heptaanihapon ja sen farmaseuttisesti hyväksyttävien suolojen valmistamiseksi
DE3929507A1 (de) * 1989-09-06 1991-03-07 Bayer Ag Substituierte amino-pyridine
US5039802A (en) 1990-04-18 1991-08-13 Merck & Co., Inc. Arylation process for preparation of chiral catalysts for ketone reduction
JP3528186B2 (ja) 1991-06-24 2004-05-17 日産化学工業株式会社 光学活性キノリンメバロン酸のジアステレオマー塩
US5155251A (en) 1991-10-11 1992-10-13 Warner-Lambert Company Process for the synthesis of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate
US5218138A (en) * 1992-09-02 1993-06-08 Rhone-Poulenc Rorer Pharmaceuticals Inc. Stereoselective reduction of 3-hydroxyket-1-ones to 1,3-syn-dihydroxylated compounds
US5298627A (en) * 1993-03-03 1994-03-29 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis

Also Published As

Publication number Publication date
PL193678B1 (pl) 2007-03-30
GT199800197AA (es) 2000-06-06
DK1054860T3 (da) 2007-07-02
AU755543B2 (en) 2002-12-12
BR9813760A (pt) 2000-10-03
WO1999032434A1 (en) 1999-07-01
NO20003139L (no) 2000-06-16
ZA9811586B (en) 1999-06-17
DE69837681D1 (de) 2007-06-06
PE20000136A1 (es) 2000-03-11
US6433213B1 (en) 2002-08-13
SV1998000153A (es) 1999-09-30
US20020161021A1 (en) 2002-10-31
TW444000B (en) 2001-07-01
HUP0100252A3 (en) 2002-12-28
EP1054860B1 (en) 2007-04-25
US7232915B2 (en) 2007-06-19
NZ504346A (en) 2001-11-30
KR20060080941A (ko) 2006-07-11
KR20010033315A (ko) 2001-04-25
KR100668575B1 (ko) 2007-01-17
IL135562A (en) 2005-08-31
US6596879B2 (en) 2003-07-22
AU1707499A (en) 1999-07-12
US20040006231A1 (en) 2004-01-08
NO20003139D0 (no) 2000-06-16
ES2284219T3 (es) 2007-11-01
AR014943A1 (es) 2001-04-11
CA2305618A1 (en) 1999-07-01
CA2305618C (en) 2004-08-17
US20050197500A1 (en) 2005-09-08
GT199800197A (es) 2000-06-06
PL341294A1 (en) 2001-04-09
US6962994B2 (en) 2005-11-08
PA8464901A1 (es) 2000-05-24
KR100681366B1 (ko) 2007-02-12
ATE360608T1 (de) 2007-05-15
EP1054860A1 (en) 2000-11-29
DE69837681T2 (de) 2008-01-10
IS5447A (is) 2000-04-14
PT1054860E (pt) 2007-06-22
MY118726A (en) 2005-01-31
HUP0100252A1 (hu) 2001-07-30
IL135562A0 (en) 2001-05-20
CY1106612T1 (el) 2012-01-25
JP2001526256A (ja) 2001-12-18
CU22939A3 (es) 2004-04-13
CO4990941A1 (es) 2000-12-26

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