FI108539B - Parannettu menetelmä (4R-cis)-1,1-dimetyylietyyli-6-syanometyyli-2,2-dimetyyli-1,3-dioksaani-4-asetaatin syntetisoimiseksi - Google Patents

Parannettu menetelmä (4R-cis)-1,1-dimetyylietyyli-6-syanometyyli-2,2-dimetyyli-1,3-dioksaani-4-asetaatin syntetisoimiseksi Download PDF

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Publication number
FI108539B
FI108539B FI931680A FI931680A FI108539B FI 108539 B FI108539 B FI 108539B FI 931680 A FI931680 A FI 931680A FI 931680 A FI931680 A FI 931680A FI 108539 B FI108539 B FI 108539B
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Finland
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formula
dimethyl
acetate
cis
compound
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FI931680A
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English (en)
Finnish (fi)
Swedish (sv)
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FI931680A (fi
FI931680A0 (fi
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Donald Eugene Butler
Alan Millar
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Warner Lambert Co
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Publication of FI931680A0 publication Critical patent/FI931680A0/fi
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Publication of FI108539B publication Critical patent/FI108539B/fi

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D319/00Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/041,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/061,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
FI931680A 1990-10-17 1993-04-14 Parannettu menetelmä (4R-cis)-1,1-dimetyylietyyli-6-syanometyyli-2,2-dimetyyli-1,3-dioksaani-4-asetaatin syntetisoimiseksi FI108539B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US59952190 1990-10-17
US07/599,521 US5103024A (en) 1990-10-17 1990-10-17 Process for the synthesis of (4r-cis)-1,1-dimethylethyl 6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate
PCT/US1991/006697 WO1992006968A1 (en) 1990-10-17 1991-09-11 Process for the synthesis of (4r-cis)-1,1-dimethylethyl-6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate
US9106697 1991-09-11

Publications (3)

Publication Number Publication Date
FI931680A FI931680A (fi) 1993-04-14
FI931680A0 FI931680A0 (fi) 1993-04-14
FI108539B true FI108539B (fi) 2002-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
FI931680A FI108539B (fi) 1990-10-17 1993-04-14 Parannettu menetelmä (4R-cis)-1,1-dimetyylietyyli-6-syanometyyli-2,2-dimetyyli-1,3-dioksaani-4-asetaatin syntetisoimiseksi

Country Status (20)

Country Link
US (1) US5103024A (ko)
EP (1) EP0553213B1 (ko)
JP (1) JP3105923B2 (ko)
KR (1) KR0166385B1 (ko)
AT (1) ATE118772T1 (ko)
AU (1) AU646311B2 (ko)
CA (1) CA2092997C (ko)
CZ (5) CZ282922B6 (ko)
DE (1) DE69107622T2 (ko)
DK (1) DK0553213T3 (ko)
ES (1) ES2070519T3 (ko)
FI (1) FI108539B (ko)
HK (1) HK1005026A1 (ko)
HU (2) HU219237B (ko)
IE (1) IE62940B1 (ko)
NO (1) NO301588B1 (ko)
PT (1) PT99244B (ko)
RU (1) RU2067580C1 (ko)
SK (5) SK280941B6 (ko)
WO (1) WO1992006968A1 (ko)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245047A (en) * 1988-02-22 1993-09-14 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
US5149837A (en) * 1988-02-22 1992-09-22 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
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
HRP960312B1 (en) 1995-07-17 2001-10-31 Warner Lambert Co NOVEL PROCESS FOR THE PRODUCTION OF AMORPHOUS /R-(R*, R*)/-2-(4-FLUOROPHENYL)-"beta", "delta"-DIHYDROXY-5-PHENYL-4-/(PHENYLAMINO)CARBONYL/-1H-PYRROLE -1-HEPTANOIC ACID CALCIUM SALT (2 : 1)
US6087511A (en) * 1996-07-16 2000-07-11 Warner-Lambert Company Process for the production of amorphous [R-(R*,R*)]-2-(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl )-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid) calcium salt (2:1)
EP1077212B1 (en) * 1998-04-30 2003-08-20 Kaneka Corporation Process for producing 6-cyanomethyl-1,3-dioxane-4-acetic acid derivatives
HU227840B1 (en) * 1999-05-06 2012-05-02 Egis Gyogyszergyar Nyilvanosan M Kod Ruszvunytarsasag Intermediates of atorvastatin synthesis and process for producing them
IN191236B (ko) 1999-05-25 2003-10-11 Ranbaxy Lab Ltd
US20040063969A1 (en) * 1999-10-18 2004-04-01 Egis Gyogyszergyar Rt. Process for the preparation of amorphous atorvastatin calcium
ES2258030T3 (es) * 1999-12-17 2006-08-16 Pfizer Science And Technology Ireland Limited Procedimiento para producir atorvastatina calcio cristalina.
JP2003517038A (ja) 1999-12-17 2003-05-20 ワーナー・ランバート・リサーチ・アンド・ディベロップメント・アイルランド・リミテッド 結晶質アトルバスタチン三水和物半カルシウム塩の工場規模での製造方法
US7608445B1 (en) 1999-12-29 2009-10-27 Verenium Corporation Nitrilases, nucleic acids encoding them and methods for making and using them
US7521216B2 (en) 1999-12-29 2009-04-21 Verenium Corporation Nitrilases 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
US20040014195A1 (en) * 1999-12-29 2004-01-22 Diversa Corporation Nitrilases, nucleic acids encoding them and methods for making and using them
JP3844112B2 (ja) 2000-08-23 2006-11-08 高砂香料工業株式会社 3,5,6−トリヒドロキシヘキサン酸アンモニウム塩誘導体、及びその製造方法
EP1734034A3 (en) 2001-01-09 2007-01-03 Warner-Lambert Company LLC Carboxylic acid salts of beta-alanine esters or -amides
US6476235B2 (en) * 2001-01-09 2002-11-05 Warner-Lambert Company Process for the synthesis of 5-(4-fluorophenyl)-1-[2-((2R,4R)-4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-ethyl]-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide
WO2002057229A1 (en) * 2001-01-19 2002-07-25 Biocon India Limited FORM V CRYSTALLINE [R-(R*,R*)]-2-(4-FLUOROPHENYL)-ß,$G(D)-DIHYDROXY-5-(1-METHYLETHYL)-3-PHENYL-4-[(PHENYLAMINO)CARBONYL]-1H-PYRROLE-1- HEPTANOIC ACID HEMI CALCIUM SALT. (ATORVASTATIN)
SI20814A (sl) * 2001-01-23 2002-08-31 LEK, tovarna farmacevtskih in kemi�nih izdelkov, d.d. Priprava amorfnega atorvastatina
SI20848A (sl) 2001-03-14 2002-10-31 Lek, Tovarna Farmacevtskih In Kemijskih Izdelkov, D.D. Farmacevtska formulacija, ki vsebuje atorvastatin kalcij
KR100609371B1 (ko) 2001-06-29 2006-08-08 워너-램버트 캄파니 엘엘씨 R-(r*,r*)-2-(4-플루오로페닐)-베타,델타-디히드록시-5-(1-메틸에틸)-3-페닐-4-페닐아미노)카르보닐-1h-피롤-1-헵탄산 칼슘염 (2:1) (아토르바스타틴)의 결정질 형태
GB0116212D0 (en) * 2001-07-03 2001-08-29 Avecia Ltd Process
PL368647A1 (en) 2001-07-30 2005-04-04 Dr.Reddy's Laboratories Ltd. Crystalline forms vi and vii of atorvastatin calcium
US20030114497A1 (en) * 2001-07-31 2003-06-19 Laman Alani Pharmaceutical compositions of amlodipine and atorvastatin
CA2456095C (en) * 2001-08-31 2010-05-11 Morepen Laboratories Ltd. An improved process for the preparation of amorphous atorvastatin calcium salt (2:1)
HU227124B1 (en) * 2001-09-14 2010-07-28 Egis Gyogyszergyar Nyilvanosan Polymorphs of 1-pyrrole derivative, intermediate for the preparation of atorvastatin
UA77990C2 (en) * 2001-12-12 2007-02-15 Crystalline calcium salt of (2:1) [r-(r*,r*)]-2-(4-fluorophenyl)-?,?-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1h-pyrroleheptanic acid
CZ296967B6 (cs) * 2002-02-01 2006-08-16 Zentiva, A.S. Zpusob výroby amorfní formy hemivápenaté soli (3R,5R) 7-[3-fenyl-4-fenylkarbamoyl-2-(4-fluorfenyl)-5-isopropylpyrrol-1-yl]-3,5-dihydroxyheptanové kyseliny (atorvastatinu)
DE10212492B4 (de) * 2002-03-21 2012-02-02 Daimler Ag Kolbenpumpe
AU2003251523A1 (en) 2002-06-13 2003-12-31 Diversa Corporation Processes for making (r)-ethyl 4-cyano-3-hydroxybutyric acid
DE60315308T2 (de) * 2002-08-06 2007-12-20 Warner-Lambert Company Llc Verfahren zum herstell von 5-(4-fluorphenyl)-1-[2-((2r,4r)-4-hydroxy-6-oxotetrahydropyran-2-yl)ethyl]-2-isopropyl-4-phenyl-1h-pyrrol-3-carbonsäurephenylamid
CA2491051A1 (en) * 2002-09-03 2004-03-18 Morepen Laboratories Limited Atorvastatin calcium form vi or hydrates thereof
KR100529703B1 (ko) * 2002-09-23 2005-11-17 임광민 키랄 중간체의 제조방법 및 그를 이용한 아토바스타틴의제조방법
HRP20020885B1 (en) * 2002-11-11 2007-05-31 GlaxoSmithKline istra�iva�ki centar Zagreb d.o.o. SUBSTITUTED 9a-N-{N'-[4-(SULFONYL)PHENYLCARBAMOYL]}DERIVATIVES 9-DEOXO-9-DIHYDRO-9a-AZA-9a-HOMOERITHROMYCIN A AND 5-O-DESOZAMINYL-9-DEOXO-9-DIHYDRO-9a-AZA-9a-HOMOERITHRONOLIDE A
BRPI0409333A (pt) * 2003-04-14 2006-04-25 Warner Lambert Co processo para a preparação de fenilamida do ácido 5-(4-fluorofenil)-1-[2-((2r,4r)-4-hidróxi-6-oxo-tetrahid ro-piran-2-il)etil]-2-isopropil-4-fenil-1h-pirrol-3-carb oxìlico
EP1626713A2 (en) * 2003-05-16 2006-02-22 Ambit Biosciences Corporation Heterocyclic compounds and uses thereof
US20050182125A1 (en) * 2003-05-16 2005-08-18 Ambit Biosciences Corporation Pyrrole compounds and uses thereof
US20040248972A1 (en) * 2003-05-16 2004-12-09 Ambit Biosciences Corporation Compounds and uses thereof
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
BRPI0412786A (pt) 2003-07-25 2006-09-26 Avecia Pharmaceuticals Ltd processo para a preparação de um composto, e, composto
CA2539158A1 (en) * 2003-09-17 2005-03-24 Warner-Lambert Company Llc Crystalline forms of ['r-(r*,r*)]-2-(4-fluorophenyl)-beta,delta-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1h-pyrrole-1-heptanoic acid
CA2456430A1 (en) * 2004-01-28 2005-07-28 Brantford Chemicals Inc. Improved process for the preparation of amorphous atorvastatin calcium
PT1727795E (pt) 2004-03-17 2012-04-11 Ranbaxy Lab Ltd Processo para a produção de atorvastatina cálcica na forma amorfa
US20070225353A1 (en) * 2004-04-16 2007-09-27 Pfizer, Inc. Process for Forming Amorphous Atorvastatin
US7875731B2 (en) 2004-05-05 2011-01-25 Pfizer Inc. Salt forms of [R-(R*,R*)]-2-(4-fluorophenyl)-β, δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)Carbonyl]-1H-pyrrole-1-heptanoic acid
HUE029911T2 (en) * 2004-07-16 2017-04-28 Lek Pharmaceuticals Products of atorvastatin calcium oxidative degradation
CA2573771C (en) 2004-07-20 2011-05-10 Warner-Lambert Company Llc Novel forms of [r-(r*,r*)]-2-(4-fluorophenyl)-.beta., .gamma.-dihydroxy-5-(1-menthylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1h-pyrrole-1-heptanoic acid calcium salt (2:1)
JP2008510798A (ja) * 2004-08-27 2008-04-10 バイオコン・リミテッド 非晶質アトルバスタチンカルシウムのための方法
KR20070067175A (ko) 2004-10-28 2007-06-27 워너-램버트 캄파니 엘엘씨 무정형 아토르바스타틴 형성 방법
US20090208539A1 (en) * 2004-11-22 2009-08-20 Adel Penhasi Stable atorvastatin formulations
EP1819319A1 (en) * 2004-12-02 2007-08-22 Warner-Lambert Company LLC Pharmaceutical compositions of amorphous atorvastatin and process for preparing same
US20090221839A1 (en) * 2005-09-09 2009-09-03 Pfizer Inc. Preparation of an Atorvastatin Intermediate
JP2009507822A (ja) * 2005-09-09 2009-02-26 ファイザー・サイエンス・アンド・テクノロジー・アイルランド・リミテッド アトルバスタチン中間体の調製
US20090216029A1 (en) * 2005-09-16 2009-08-27 Yatendra Kumar Process for the production of atorvastatin calcium in amorphous form
CA2547216A1 (en) 2005-09-21 2007-03-21 Renuka D. Reddy Process for annealing amorphous atorvastatin
US8084488B2 (en) * 2005-11-21 2011-12-27 Pfizer Inc. Forms of [R-(R*,R*)]-2-(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid magnesium
EP1810667A1 (en) 2006-01-20 2007-07-25 KRKA, tovarna zdravil, d.d., Novo mesto Pharmaceutical composition comprising amorphous atorvastatin
US20100113802A1 (en) * 2006-11-02 2010-05-06 Cadila Pharmaceuticals Limited Process for preparing amorphous atorvastatin hemi calcium salt and its itermediate
US7834195B2 (en) * 2007-01-24 2010-11-16 Apotex Pharmachem Inc. Atorvastatin calcium propylene glycol solvates
WO2008106662A2 (en) 2007-03-01 2008-09-04 Verenium Corporation Nitrilases, nucleic acids encoding them and methods for making and using them
US20110142883A1 (en) * 2007-07-20 2011-06-16 Actavis Group Ptc Ehf Amorphous Coprecipitates of Atorvastatin Pharmaceutically Acceptable Salts
EP2075246A1 (en) 2007-12-27 2009-07-01 M. J. Institute of Research A process for preparation of amorphous form of atorvastatin hemi-calcium salt
US8115015B2 (en) * 2009-01-26 2012-02-14 Cadila Healthcare Limited Process for the preparation of amorphous atorvastatin calcium
WO2012032035A1 (en) 2010-09-09 2012-03-15 Dsm Sinochem Pharmaceuticals Netherlands B.V. Salts of 7-amino-3,5-dihydroxyheptanoic acid esters
WO2013004591A1 (en) 2011-07-01 2013-01-10 Dsm Sinochem Pharmaceuticals Netherlands B.V. Micronized crystals of atorvastatin hemicalcium
WO2016056031A1 (en) 2014-10-08 2016-04-14 Council Of Scientific & Industrial Research Novel diol compounds synthesis and its use for formal synthesis of (2r, 3 s)-3-hydroxypipecolic acid
CN106008251A (zh) * 2016-05-19 2016-10-12 河南豫辰药业股份有限公司 一种2-苯甲撑-3-氧代-4-甲基-n-苯基戊酰胺的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647576A (en) * 1984-09-24 1987-03-03 Warner-Lambert Company Trans-6-[2-(substitutedpyrrol-1-yl)alkyl]-pyran-2-one inhibitors of cholesterol synthesis
US4681893A (en) * 1986-05-30 1987-07-21 Warner-Lambert Company Trans-6-[2-(3- or 4-carboxamido-substituted pyrrol-1-yl)alkyl]-4-hydroxypyran-2-one inhibitors of cholesterol synthesis
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
US5093363A (en) * 1989-08-22 1992-03-03 Shionogi & Co., Ltd. 2,4,6-substituted phenol derivatives
DE3929913A1 (de) * 1989-09-08 1991-04-04 Hoechst Ag 4-hydroxytetrahydropyran-2-one sowie die entsprechenden dihydroxycarbonsaeurederivate, salze und ester, verfahren zu ihrer herstellung, ihre verwendung als arzneimittel, pharmazeutische praeparate sowie vorprodukte

Also Published As

Publication number Publication date
EP0553213A1 (en) 1993-08-04
ES2070519T3 (es) 1995-06-01
CZ283003B6 (cs) 1997-12-17
KR0166385B1 (en) 1999-01-15
AU8848091A (en) 1992-05-20
CZ282993B6 (cs) 1997-12-17
HU9701183D0 (en) 1997-09-29
CA2092997A1 (en) 1992-04-18
WO1992006968A1 (en) 1992-04-30
DE69107622T2 (de) 1995-07-06
CZ124697A3 (en) 1997-12-17
HK1005026A1 (en) 1998-12-18
CZ282922B6 (cs) 1997-11-12
CZ124597A3 (en) 1997-12-17
RU2067580C1 (ru) 1996-10-10
FI931680A (fi) 1993-04-14
SK33993A3 (en) 1993-10-06
JPH06502162A (ja) 1994-03-10
SK280938B6 (sk) 2000-09-12
SK280940B6 (sk) 2000-09-12
CZ61493A3 (en) 1994-02-16
FI931680A0 (fi) 1993-04-14
DE69107622D1 (de) 1995-03-30
NO301588B1 (no) 1997-11-17
NO931421L (no) 1993-06-16
HUT64049A (en) 1993-11-29
CZ209495A3 (en) 1997-12-17
CA2092997C (en) 2002-05-14
JP3105923B2 (ja) 2000-11-06
CZ124797A3 (en) 1997-12-17
PT99244A (pt) 1992-09-30
KR930702328A (ko) 1993-09-08
AU646311B2 (en) 1994-02-17
NO931421D0 (no) 1993-04-16
HU9301122D0 (en) 1993-08-30
EP0553213B1 (en) 1995-02-22
HU213731B (en) 1997-09-29
SK280942B6 (sk) 2000-09-12
CZ282994B6 (cs) 1997-12-17
SK280939B6 (sk) 2000-09-12
IE62940B1 (en) 1995-03-08
HU219237B (en) 2001-03-28
IE913629A1 (en) 1992-04-22
ATE118772T1 (de) 1995-03-15
PT99244B (pt) 1999-04-30
DK0553213T3 (da) 1995-07-17
US5103024A (en) 1992-04-07
SK280941B6 (sk) 2000-09-12
CZ282992B6 (cs) 1997-12-17

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