[EN] PROCESSES FOR THE PREPARATION OF BENDAMUSTINE<br/>[FR] PROCÉDÉS POUR LA PRÉPARATION DE BENDAMUSTINE
申请人:CEPHALON INC
公开号:WO2010042568A1
公开(公告)日:2010-04-15
New methods for the preparation of bendamustine, and the pharmaceutical salts thereof, are described. Novel compounds useful for the preparation of bendamustine are also described.
本文描述了制备苯达莫司汀及其药物盐的新方法。同时也描述了用于制备苯达莫司汀的新型化合物。
Processes for the Preparation of Bendamustine
申请人:Chen Jian
公开号:US20110190509A1
公开(公告)日:2011-08-04
New methods for the preparation of bendamustine, and the pharmaceutical salts thereof, are described. Novel compounds useful for the preparation of bendamustine are also described.
本文描述了制备苯达莫司汀及其药用盐的新方法。同时,还描述了用于制备苯达莫司汀的新化合物。
US8420829B2
申请人:——
公开号:US8420829B2
公开(公告)日:2013-04-16
Baker’s Yeast-Mediated Regioselective Reduction of 2,4-Dinitroacylanilines: Synthesis of 2-Substituted 6-Nitrobenzimidazoles
作者:Arturo Navarro-Ocaña、Luís F. Olguín、Manuel Jiménez-Estrada、Eduardo Bárzana
DOI:10.1055/s-2004-837203
日期:——
Several 2,4-dinitro-N-acylanilines were regioselectively reduced at the C-2 position by baker's yeast in slightly basic media (pH = 7.5) to afford 2-amino-4-nitroacylanilines, which were then cyclized under acidic conditions to the corresponding 2-substituted-6-nitrobenzimidazoles. The benzimidazoles thus obtained can be employed as precursors for bioactive derivatives.