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    • 4. 发明申请
    • Process For Producing Pure And Stable Form Of 2-Methyl-4-(4-Methyl-1-Piperazinyl) -10H-Thieno[2,3-B] [1,5] Benzodiazepine
    • 2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩并[2,3-b] [1,5]苯并二氮杂的纯稳定形式的制备方法
    • US20100317849A1
    • 2010-12-16
    • US12225080
    • 2006-03-14
    • Dinesh PanchasaraPoorvi GuptaGeetesh KaushikSushil Dubey
    • Dinesh PanchasaraPoorvi GuptaGeetesh KaushikSushil Dubey
    • C07D495/04
    • C07D495/04
    • Disclosed is an improved process for producing pure and thermally color stable crystalline Form I of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5]benzodiazepine and product thereof. 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][l,5J 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. Further the invention also provides a new polymorph of Olanzapine, dihydrate Form Ji and process for its preparation and a new hydrate Form J2 of Olanzapine having moisture content 1-3% and process for its preparation.
    • 公开了一种改进的2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩并[2,3-b] [1,5]苯并二氮杂和产物的纯色和热色稳定晶型I的方法 其中。 该方法包括使2-(2-氨基苯胺基)-5-甲基噻吩-3-腈与N-甲基哌嗪与N-甲基哌嗪酸盐一起反应,得到2-甲基-4-(4-甲基-1-哌嗪基 )-10H-噻吩并[2,3-b] [1,5]苯并二氮杂。 还公开了通过将粗2-甲基-4-(4-甲基-1-哌嗪基)-10H-噻吩并[2,3-b] [1,5]苯并二氮杂的粗2- -4-(4-甲基-1-哌嗪基)-10H-噻吩并[2,3-b] [1,5]苯并二氮杂在溶剂混合物中。 此外,本发明还提供了奥氮平,二水合物形式及其制备方法和水分含量为1-3%的奥氮平新型水合物形式J2的新型多晶型物及其制备方法。