[go: up one dir, main page]

HK1070901A - Process for the preparation of pregnanes - Google Patents

Process for the preparation of pregnanes Download PDF

Info

Publication number
HK1070901A
HK1070901A HK05103913.3A HK05103913A HK1070901A HK 1070901 A HK1070901 A HK 1070901A HK 05103913 A HK05103913 A HK 05103913A HK 1070901 A HK1070901 A HK 1070901A
Authority
HK
Hong Kong
Prior art keywords
preparation
formula
pregnanes
derivatives
fluoropregnane
Prior art date
Application number
HK05103913.3A
Other languages
Chinese (zh)
Inventor
Peter Macdonald
Pierluigi Rossetto
Original Assignee
Sicor Inc.
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 Sicor Inc. filed Critical Sicor Inc.
Publication of HK1070901A publication Critical patent/HK1070901A/en

Links

Abstract

An improved stereoselective process for the preparation of 6alpha-fluoropregnane derivatives of formula (I), comprising the reaction of 3-benzoyloxy-Delta3,5-pregnane derivatives of formula (II), with an electrophilic fluorination agent in a substantially water-free reaction mixture and in the presence of a salt of a strong acid with a nitrogenous base.
HK05103913.3A 2002-12-09 2003-12-02 Process for the preparation of pregnanes HK1070901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02027534.3 2002-12-09

Publications (1)

Publication Number Publication Date
HK1070901A true HK1070901A (en) 2005-06-30

Family

ID=

Similar Documents

Publication Publication Date Title
WO2000069470A3 (en) Improved cellular uptake of bioactive agents
CA2382406A1 (en) Substituted 2-arylbenzazole compounds and their use as antitumour agents
JP2002514648A5 (en)
AU3483497A (en) Solid solution of an antifungal agent with enhanced bioavailability
AU2001271085A1 (en) Organic acid producing microorganism and process for preparing organic acids employing the same
IL131255A0 (en) A process for the preparation of 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid and the derivatives thereof
YU77400A (en) Process for preparing 1,4-dihydropyridine compounds
WO2001019826A3 (en) Triazolopyrimidine derivatives
WO2000008021A3 (en) Process for preparing n,n,6- trimethyl-2 -(4-methylphenyl)- imidazo-[1,2-a] -pyridine-3- acetamide and salts thereof
CA2509366A1 (en) Process for the preparation of pregnanes
AU6740296A (en) Process for the preparation of potassium clavulanate
HK1070901A (en) Process for the preparation of pregnanes
AU2003224115A1 (en) A process for the preparation of clopidogrel
ATE295368T1 (en) METHOD FOR PRODUCING 3-AMINO-BALE ACID DERIVATIVES
AU3160601A (en) Process for the recovery and recycle of d-tartaric acid
WO2000012473A8 (en) PROCESS FOR THE PRODUCTION OF N-PROTECTED AZETIDINE-2-CARBOXYLIC ACIDS (AzeOHs)
AU2001252254A1 (en) 2,6-diamino-6-methyl-heptanoic acid and derivatives, process for the preparationthereof and use thereof
CA2276310A1 (en) Process for the production of tetrazolylbenzopyrans
EP1283210A4 (en) Process for preparation of sulfonamide derivatives and crystals thereof
AU5414699A (en) Method for producing atropic acid ethyl ester
WO1999010306A8 (en) Process for preparing 2-halogenated indan-1-ones
ZA965092B (en) Process for the preparation of alpha-methyl-thiopheneacetic acid derivatives
CA2193932A1 (en) Process for producing isatoic anhydrides
CA2390934A1 (en) Process for producing benzylamine compound
AU1987000A (en) Method for preparing an aza-macrolide with 4'' (r) nh2