DK0643689T3 - Forbedret fremgangsmåde til syntese af (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoat - Google Patents

Forbedret fremgangsmåde til syntese af (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoat

Info

Publication number
DK0643689T3
DK0643689T3 DK92921435T DK92921435T DK0643689T3 DK 0643689 T3 DK0643689 T3 DK 0643689T3 DK 92921435 T DK92921435 T DK 92921435T DK 92921435 T DK92921435 T DK 92921435T DK 0643689 T3 DK0643689 T3 DK 0643689T3
Authority
DK
Denmark
Prior art keywords
hexanoate
dimethylethyl
oxo
cyano
hydroxy
Prior art date
Application number
DK92921435T
Other languages
Danish (da)
English (en)
Inventor
Tung Van Le
Donald Eugene Butler
Alan Millar
Thomas Norman Nanninga
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
Application granted granted Critical
Publication of DK0643689T3 publication Critical patent/DK0643689T3/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/19—Carboxylic 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
    • C07C255/21—Carboxylic 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
DK92921435T 1991-10-11 1992-10-05 Forbedret fremgangsmåde til syntese af (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoat DK0643689T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/775,162 US5155251A (en) 1991-10-11 1991-10-11 Process for the synthesis of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate
PCT/US1992/008441 WO1993007115A1 (en) 1991-10-11 1992-10-05 Improved process for the synthesis of (5r)-1,1-dimethylethyl 6-cyano-5-hydroxy-3-oxo-hexanoate

Publications (1)

Publication Number Publication Date
DK0643689T3 true DK0643689T3 (da) 1999-08-30

Family

ID=25103514

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92921435T DK0643689T3 (da) 1991-10-11 1992-10-05 Forbedret fremgangsmåde til syntese af (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoat

Country Status (16)

Country Link
US (1) US5155251A (ja)
EP (1) EP0643689B1 (ja)
JP (2) JP3241723B2 (ja)
AT (1) ATE175190T1 (ja)
AU (1) AU667320B2 (ja)
CA (1) CA2116973C (ja)
DE (1) DE69228073T2 (ja)
DK (1) DK0643689T3 (ja)
ES (1) ES2129457T3 (ja)
FI (1) FI941632A0 (ja)
MX (1) MX9205824A (ja)
NO (1) NO300208B1 (ja)
PT (1) PT100943B (ja)
SG (1) SG46599A1 (ja)
WO (1) WO1993007115A1 (ja)
ZA (1) ZA927793B (ja)

Families Citing this family (83)

* 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
JP3171931B2 (ja) * 1992-06-02 2001-06-04 高砂香料工業株式会社 （Ｒ）−（−）−４−シアノ−３−ヒドロキシ酪酸ｔ−ブチルエステル及びその製造方法
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
GB9512837D0 (en) * 1995-06-23 1995-08-23 Zeneca Ltd reduction of ketone groups
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)
US5908953A (en) * 1996-12-18 1999-06-01 Mitsubishi Chemical Corporation Method for producing (R)-4-cyano-3-hydroxybutyric acid lower alkyl ester
JPH11171850A (ja) * 1997-12-12 1999-06-29 Kanegafuchi Chem Ind Co Ltd 酪酸エステル誘導体の製造方法
WO1999032434A1 (en) * 1997-12-19 1999-07-01 Warner-Lambert Export Limited Process for the synthesis of 1,3-diols
CA2329893A1 (en) * 1998-04-30 1999-11-11 Kaneka Corporation Process for producing 6-cyanomethyl-1,3-dioxane-4-acetic acid derivatives
ES2294236T3 (es) 1998-08-05 2008-04-01 Kaneka Corporation Procedimiento para la preparacion de esteres sustituidos con 3,5-dihidroxi como intermedios para producir derivados de acido 2-(6-hiximetil)-1,3-dioxan-4-il) acetico opticamente activos.
KR100313668B1 (ko) * 1999-02-03 2001-11-26 박영구 (ｒ)-4-시아노-3-히드록시부티르산 에스테르의 제조방법
HU227840B1 (en) * 1999-05-06 2012-05-02 Egis Gyogyszergyar Nyilvanosan M Kod Ruszvunytarsasag Intermediates of atorvastatin synthesis and process for producing them
CA2339357A1 (en) * 1999-06-04 2000-12-14 Kenji Inoue Processes for the preparation of 5-hydroxy-3-oxopentanoic acid derivatives
US20040063969A1 (en) * 1999-10-18 2004-04-01 Egis Gyogyszergyar Rt. Process for the preparation of amorphous 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.
CA2391357C (en) * 1999-12-17 2009-01-06 Warner Lambert Research And Development Ireland Limited A process for producing crystalline atorvastatin calcium
CN100368386C (zh) * 2000-05-31 2008-02-13 中国医学科学院药物研究所 （±）对氟-2-（2-甲基-丙酰基）-4-氧-n，3-二苯基-苯丁酰胺的合成方法以及其中的中间体
CN101250133B (zh) * 2000-05-31 2010-06-09 中国医学科学院药物研究所 (±)对氟-2-(2-甲基-丙酰基)-4-氧-n，3-二苯基-苯丁酰胺的合成方法以及其中的中间体
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
EP1724256A3 (en) 2001-01-09 2007-03-21 Warner-Lambert Company LLC Novel process for the synthesis of 5-(4-fluorphenyl)-1-2(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
PL367943A1 (en) 2001-06-29 2005-03-07 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 calcium salt (2:1) (atorvastatin)
DK1404642T3 (da) 2001-07-06 2010-05-17 Basf Se Fremgangsmåde til fremstillimg af 7-amino-syn-3,5-dihydroxyheptansyrederivater, mellemprodukter derfor og fremgangsmåder til deres fremstilling
HUP0401014A2 (hu) 2001-07-06 2004-08-30 Teva Pharmaceutical Industries Ltd. Eljárás 7-amino-szin-3,5-dihidroxi-heptánsavszármazékok előállítására, 6-ciano-szin-3,5-dihidroxi-hexánsav származékokon keresztül
PT1404642E (pt) 2001-07-06 2010-03-29 Basf Se Processo para a preparação de derivados do ácido 7-amino sin 3,5-dihidroxi heptanoico, intermediários respectivos e métodos para a sua preparação
JP4765217B2 (ja) * 2001-07-30 2011-09-07 住友化学株式会社 （ｒ）−４−シアノ−３−ヒドロキシブタン酸エステルの製造法
EP2292600A1 (en) 2001-07-30 2011-03-09 Dr. Reddy's Laboratories Ltd. Crystaline forms VI and VII of atorvastatin calcium
PE20030324A1 (es) * 2001-07-31 2003-04-03 Warner Lambert Co Composiciones farmaceuticas de amlodipina y atorvastatina
US7563911B2 (en) * 2001-08-31 2009-07-21 Morepen Laboratories Ltd. Process for the preparation of amorphous atorvastin calcium salt (2:1)
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
KR100849880B1 (ko) * 2001-12-20 2008-08-01 주식회사 중외제약 광학활성 2-[6-(치환된 알킬)-1,3-디옥산-4-일]아세트산유도체의 신규 제조 방법
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
CA2494269A1 (en) * 2002-08-06 2004-02-19 Warner-Lambert Company Llc Process for preparing 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
AU2003258187A1 (en) * 2002-08-09 2004-02-25 Codexis, Inc. Enzymatic processes for the production of 4-substituted 3-hydroxybutyric acid derivatives
US20060122403A1 (en) * 2002-09-03 2006-06-08 Sanjay Suri Atorvastatin calcium form vi or hydrates thereof
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
WO2004089894A1 (en) * 2003-04-14 2004-10-21 Warner-Lambert Company Llc Process for preparing 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
US20040248972A1 (en) * 2003-05-16 2004-12-09 Ambit Biosciences Corporation Compounds and uses thereof
US20050182125A1 (en) * 2003-05-16 2005-08-18 Ambit Biosciences Corporation Pyrrole compounds and uses thereof
JP2007500219A (ja) * 2003-05-16 2007-01-11 アンビット バイオサイエンシス コーポレーション 複素環化合物およびその使用法
US7790197B2 (en) * 2003-06-09 2010-09-07 Warner-Lambert Company Llc Pharmaceutical compositions of atorvastatin
US20040253305A1 (en) * 2003-06-12 2004-12-16 Luner Paul E. Pharmaceutical compositions of atorvastatin
US7655692B2 (en) * 2003-06-12 2010-02-02 Pfizer Inc. Process for forming amorphous atorvastatin
US20050271717A1 (en) * 2003-06-12 2005-12-08 Alfred Berchielli Pharmaceutical compositions of atorvastatin
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
AU2004309313A1 (en) * 2003-12-29 2005-07-14 Lek Pharmaceuticals D.D. Process for preparing amorphous (4R-cis)-6-[2-[3-phenyl-4-(phenylcarbamoyl)-2-(4-fluorophenyl)-5-(1-methylethyl)-pyrrol-1-yl]-ethyl]-2,2-dimethyl-[1,3]-dioxane-4-yl-acetic acid
CA2456430A1 (en) * 2004-01-28 2005-07-28 Brantford Chemicals Inc. Improved process for the preparation of amorphous atorvastatin calcium
EP1577297A1 (en) 2004-03-17 2005-09-21 Ranbaxy Laboratories, Ltd. Process for the production of atorvastatin calcium in amorphous form
JP2007532622A (ja) * 2004-04-16 2007-11-15 ファイザー・プロダクツ・インク 非晶質アトルバスタチン・カルシウムの形成方法
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
CA2573969C (en) * 2004-07-16 2014-02-04 Lek Pharmaceuticals D.D. Oxidative degradation products of atorvastatin calcium
CA2672554C (en) 2004-07-20 2012-01-03 Warner-Lambert Company Llc Novel forms of [r-(r*,r*)]-2-(4-fluorophenyl).beta.,.delta.-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1h-pyrrole-1-heptanoic acid calcium salt (2:1)
US7645888B2 (en) * 2004-08-27 2010-01-12 Biocon Limited Process for the production of amorphous atorvastatin calcium
BRPI0519996A2 (pt) 2004-10-28 2009-04-07 Warner Lambert Co processo para formar atorvastatina amorfa
US20090208539A1 (en) * 2004-11-22 2009-08-20 Adel Penhasi Stable atorvastatin formulations
US20090088465A1 (en) * 2004-12-02 2009-04-02 Stephen Craig Dyar Pharmaceutical Compositions of Amorphous Atorvastatin and Process for Preparing Same
EP1922301A1 (en) * 2005-09-09 2008-05-21 Pfizer Science and Technology Ireland Limited Preparation of an atorvastatin intermediate
DE602005014686D1 (de) * 2005-09-09 2009-07-09 Pfizer Science & Tech Ltd Herstellung eines atorvastatin-zwischenprodukts
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
ES2304335T3 (es) 2005-11-21 2010-05-19 Warner-Lambert Company Llc Formas nuevas del acido (r-(r*,r*))-2-(4-fluorofenil)-b,b-dihidroxi-5-(1-metiletil)-3-fenil-4-((fenilamino)carbonil)1h-pirrol-1-heptanoico, de magnesio.
EP1810667A1 (en) 2006-01-20 2007-07-25 KRKA, tovarna zdravil, d.d., Novo mesto Pharmaceutical composition comprising amorphous atorvastatin
EP2066788B1 (en) 2006-10-02 2014-07-23 Codexis, Inc. Compositions and methods for producing stereoisomerically pure statins and synthetic intermediates therefor
WO2008053312A2 (en) * 2006-11-02 2008-05-08 Cadila Pharmaceuticals Limited Process for preparing amorphous atorvastatin hemi calcium salt and its intermediate
WO2008059366A2 (en) * 2006-11-17 2008-05-22 Pfizer Products Inc. Process for the preparation of cis-1, 3-diols from the corresponding beta-hydroxy ketones employing microbial ketone reductases
US7834195B2 (en) * 2007-01-24 2010-11-16 Apotex Pharmachem Inc. Atorvastatin calcium propylene glycol solvates
US20110142883A1 (en) * 2007-07-20 2011-06-16 Actavis Group Ptc Ehf Amorphous Coprecipitates of Atorvastatin Pharmaceutically Acceptable Salts
WO2009019561A2 (en) * 2007-08-03 2009-02-12 Pfizer Products Inc. Process for preparing chiral compounds
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
GB2474687A (en) 2009-10-23 2011-04-27 Phoenix Chemicals Ltd A continuous process for the production of (R)-6-cyano-5-hydroxy-3-oxo-hexanoic acid tert-butyl ester (and derivatives)
KR20120011249A (ko) 2010-07-28 2012-02-07 주식회사 경보제약 아토바스타틴 헤미칼슘염의 신규한 결정형, 이의 수화물, 및 그의 제조방법
EP2614057B1 (en) * 2010-09-09 2015-10-21 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
CN102766072B (zh) * 2012-08-07 2013-12-25 浙江宏元药业有限公司 一种制备阿托伐他汀钙手性侧链的方法
CN103145584B (zh) * 2013-03-05 2015-08-26 复旦大学 一种合成(3r,5r)-3,5-二羟基-6-氰基己酸酯的方法
CN106397241A (zh) * 2016-08-23 2017-02-15 杨锋 一种4‑甲基‑3‑氧代‑n‑苯基戊酰胺的绿色环保后处理方法
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

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
US4611067A (en) * 1985-01-31 1986-09-09 Merck & Co., Inc. Process for the preparation of HMG-CoA reductase inhibitors and intermediate compounds employed therein
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
DE3741509A1 (de) * 1987-12-08 1989-06-22 Hoechst Ag Verfahren zur herstellung optisch aktiver 3-desmethylmevalonsaeurederivate sowie zwischenprodukte
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

Also Published As

Publication number Publication date
JP2002030060A (ja) 2002-01-29
MX9205824A (es) 1993-04-01
AU2764192A (en) 1993-05-03
NO941280D0 (no) 1994-04-08
CA2116973C (en) 2004-09-21
NO300208B1 (no) 1997-04-28
ZA927793B (en) 1994-04-11
CA2116973A1 (en) 1993-04-15
EP0643689B1 (en) 1998-12-30
PT100943A (pt) 1993-10-29
JPH07500105A (ja) 1995-01-05
FI941632A (fi) 1994-04-08
US5155251A (en) 1992-10-13
AU667320B2 (en) 1996-03-21
FI941632A0 (fi) 1994-04-08
DE69228073T2 (de) 1999-06-10
SG46599A1 (en) 1998-02-20
EP0643689A1 (en) 1995-03-22
ATE175190T1 (de) 1999-01-15
JP3429500B2 (ja) 2003-07-22
ES2129457T3 (es) 1999-06-16
JP3241723B2 (ja) 2001-12-25
NO941280L (no) 1994-04-08
DE69228073D1 (de) 1999-02-11
WO1993007115A1 (en) 1993-04-15
PT100943B (pt) 1999-07-30

Similar Documents

Publication Publication Date Title
DK0643689T3 (da) Forbedret fremgangsmåde til syntese af (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoat
NO931421L (no) Fremgangsmaate for syntese av (4r-cis)-1,1-dimetyletyl-6-cyanometyl-2,2-dimetyl-1,3-dioksan-4-acetat
ES2089416T3 (es) Procedimiento de produccion de intermedios para uso en la produccion de alcoxiiminoacetamidas.
NO951747L (no) Fremgangsmåte ved fremstilling av xylitol
DZ1618A1 (fr) Procédé de préparation de distilmats moyens.
NO175855C (no) Fremgangsmåte for fremstilling av iso-buten og alkyl-tert.butyleter
GR920300080T1 (en) Process for the preparation of cyclic carbonates
AU6592790A (en) Process for the synthesis of cyclic polynitrogenated compounds
DK0545511T3 (da) Fremgangsmåde til fremstilling af mono-N-substiuerede tetraazamakrocycler
DK0619305T3 (da) Lactonforbindelse og fremgangsmåde til fremstilling deraf
AU2613892A (en) Process for producing dimethyl ether
SE8003155L (sv) Sett att framstella 2,3-dimetylbuten-2
MX9204520A (es) Proceso para la preparacion de natamicina por fermentacion (caso ch 2074).
DK0636603T3 (da) Fremgangsmåde til fremstilling af R-aminocarnitin og S-aminocarnitin
BR8102962A (pt) Composicao termoplastica expansivel, processo de preparacao de artigo termoplastico expandido produzido pela dita composicao
DK0441708T3 (da) Fremgangsmåde til fremstilling af terpenketoner
AU2629792A (en) Process for the purification of streptolysin 0, intact streptolysin 0 obtained by this process and its use
JPS52108991A (en) Purification of lactam
FI933833A0 (fi) Stabil komposition innehaollande vetebroddsaft och foerfarande foer dess framstaellning
JPS5390067A (en) Method of making thin film filter
RU1816761C (ru) Способ получени замещенных 1-алкоксикарбонилметил-1,2-дигидро-3Н-1,4-бенздиазепин-2-онов
JPS52122398A (en) Preparation of 02 , 3'-cyclopyrimidinenucleosides
JPS5419962A (en) Preparation of 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one
JPS5283391A (en) Synthesis of 3-substituted methyl-cephem compounds
FR2710339B1 (fr) Procédé de préparation de fuchsones.