[EN] A PROCESS FOR ETRA VIRINE INTERMEDIATE AND POLYMORPHS OF ETRAVIRINE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'INTERMÉDIAIRE DE L'ÉTRAVIRINE ET DE POLYMORPHES DE L'ÉTRAVIRINE
申请人:HETERO RESEARCH FOUNDATION
公开号:WO2012001695A1
公开(公告)日:2012-01-05
4-[[6-chloro-2-[(4-cyanophenyl)amino]-4-pyrimidinyl]oxy]-3,5-dimethyl- benzonitrile is a key intermediate for the preparation of etravirine. The present invention provides a process for preparation of 4-[[6-chloro-2-[(4-cyanophenyl)amino]-4- pyrimidinyl]oxy]-3,5-dimethylbenzonitrile. The present invention also provides a novel process for the preparation of etravirine crystalline form I. The present invention further provides novel crystalline forms of etravirine, processes for their preparation and pharmaceutical compositions comprising them.
We describe the facile preparation of novel, optically active nitridomanganese(V) complexes which serve as reagents for the electrophilicamination of sulfides. This amination method has several appealing features, including: i) the facile preparation of large quantities of the starting nitridomanganese reagent 3, ii) the preparation of acylsulfilimines 2 in optically active form, and iii) the mild