[EN] A PROCESS FOR PRODUCING PURE FORM OF 2-METHYL-4-(4-METHYL-1-PIPERAZINYL)-10H-THIENO[2,3-b][1,5]BENZODIAZEPINE<br/>[FR] PROCEDE PERMETTANT DE PRODUIRE UNE FORME PURE DE 2-METHYL-4-(4-METHYL-1-PIPERAZINYL)-10H-THIENO[2,3-B][1,5]BENZODIAZEPINE
申请人:JUBILANT ORGANOSYS LTD
公开号:WO2006006180A1
公开(公告)日:2006-01-19
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.
揭示了一种生产纯2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩[2,3-b][1,5]苯二氮杂环己烯的方法。该方法包括将2-(2-氨基苯胺基)-5-甲基噻吩-3-碳腈与N-甲基哌嗪和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]苯二氮杂环己烯。还揭示了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]苯二氮杂环己烯来获得2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩[2,3-b][1,5]苯二氮杂环己烯的多形式I的方法。