The present invention provides a process for preparation of racemic voriconazole in a single reaction vessel. The present invention also provides a process for preparation of voriconazole using racemic voriconazole and the process of making it therewith.
Process Development of Voriconazole: A Novel Broad-Spectrum Triazole Antifungal Agent
作者:Mike Butters、Julie Ebbs、Stuart P. Green、Julie MacRae、Matthew C. Morland、Charles W. Murtiashaw、Alan J. Pettman
DOI:10.1021/op0000879
日期:2001.1.1
In the synthesis of (2R,3S)-2-(2,4-difluorophenyl)-3-(5-fluoro-4-pyrimidinyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol (voriconazole), the relative stereochemistry is set in the addition of a 4-(1-metalloethyl)-5-fluoropyrimidine derivative to 1-(2,4-difluorophenyl)-2-(1H-1 ,2,4-triazol-1-yl)-1-ethanone, The diastereo-control of this reaction has been examined by variation of pyrimidine substitution pattern and by changes in the metalation and reaction conditions. Excellent diastereoselection (12: ii is obtained using an organozinc derivative of 6-(1-bromoethyl)-4-chloro-5-fluoropyriminidine. lifter removal cf the chlorine from the pyrimidine ring? the absolute stereochemistry of voriconazole is established via a diastereomeric salt resolution process using (1R)-10 camphorsulfonic acid. Synthetic routes to the pyrimidine partner have also been evaluated. The initial six-step development route from 5-fluorouracil has been superseded by a four-step synthesis involving fluorination of methyl 3-oxopentanoate and cyclisation with formamidine acetate.
PROCESS FOR PREPARING VORICONAZOLE
申请人:Dr. Reddy's Laboratories Ltd.
公开号:EP1828170A2
公开(公告)日:2007-09-05
METHODS OF ADMINISTERING TOPICAL ANTIFUNGAL FORMULATIONS FOR THE TREATMENT OF FUNGAL INFECTIONS
申请人:Cevc Gregor
公开号:US20100086504A1
公开(公告)日:2010-04-08
The present invention relates to topical antifungal formulations comprising one or more antifungal (e.g., terbinafine), a lipid and a surfactant, and uses thereof for the treatment of skin and nail fungal infections.
TOPICAL TERBINAFINE FORMULATIONS AND METHODS OF ADMINISTERING SAME FOR THE TREATMENT OF FUNGAL INFECTIONS
申请人:Cevc Gregor
公开号:US20100104633A1
公开(公告)日:2010-04-29
The present invention relates to topical antifungal formulations terbinafine or a pharmaceutically acceptable salt thereof, a lipid, and a surfactant, and uses thereof for the treatment of skin and nail fungal infections.