Process for Producing Pure Form of 2-Methyl-4-(4-Methyl-1-Piperazinyl)-10H-Thieno[2,3-b] [1,5]Benzodiazepine
申请人:Shastri Jwalant Ashesh
公开号:US20090005556A1
公开(公告)日:2009-01-01
Disclosed is a process for producing pure form of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine. The process comprises of reacting 2-(2-aminoanilino)-5-methylthiophene-3-carbonitrile with N-methyl piperazine in conjunction with N-methylpiperazine acid salt, to produce 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine. Also disclosed is a process for obtaining the Polymorphic Form I of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine by crystallizing the crude 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine in a mixture of solvents.
揭示了一种生产2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩[2,3-b][1,5]苯二氮杂环己烷的纯形式的方法。该方法包括将2-(2-氨基苯胺基)-5-甲基噻吩-3-羧腈与N-甲基哌嗪以及N-甲基哌嗪酸盐一起反应,以产生2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩[2,3-b][1,5]苯二氮杂环己烷。还揭示了一种通过在溶剂混合物中结晶粗2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩[2,3-b][1,5]苯二氮杂环己烷来获得2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩[2,3-b][1,5]苯二氮杂环己烷的多型形式的方法。