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    • 6. 发明申请
    • PROCESS FOR THE PREPARATION OF BREXPIPRAZOLE FROM 7-(4-CHLOROBUTOXY)QUINOLIN-2(1H)-ONE AND 1-(BENZO[B]THIOPHEN-4-YL)PIPERAZINE
    • 由7-(4-氯代丁氧基)喹啉-2(1H) - 酮和1-(苯并[B]噻吩-4-基)哌嗪制备丁非他赛的方法
    • WO2017216661A1
    • 2017-12-21
    • PCT/IB2017/053018
    • 2017-05-23
    • JUBILANT GENERICS LIMITED
    • BANSAL, DeepakMISHRA, HimanchalMISHRA, VaibhavSRIVASTAVA, AlkaVIR, Dharam
    • C07D215/22C07D333/54C07D409/12A61K31/4709A61P25/18A61P25/24
    • The present invention relates to a process for the preparation of 7-{4-[4-(1-benzothiophen-4-yl)piperazin-1-yl]butoxy} quinolin-2(1H)-one (brexpiprazole) from 7-(4-chlorobutoxy)quinolin-2(1H)-one and 1-(benzo[b]thiophen-4-yl)piperazine. The intermediate 7-(4-chlorobutoxy)quinolin-2(1H)-one is prepared from 7-hydroxy-quinolin-2(1H)-one and 1-bromo-4-chloro-butane at a temperature below 45°C. The crude intermediate 7-(4-chlorobutoxy)quinolin-2(1H)-one is then treated with a resin (e.g. AMBER LITE IR 120 h) in an alcohol solvent (e.g. methanol) whereby the dimer impurity D is removed. The brexpiprazole obtained by this process is substantially free from dimer impurity D. Brexpiprazole is a D2 dopamine partial agonist called serotonin-dopamine activity modulator (SDAM) used for the treatment of schizophrenia and as an adjunct for major depressive disorder.
    • 本发明涉及制备7- {4- [4-(1-苯并噻吩-4-基)哌嗪-1-基]丁氧基}喹啉-2(1H) - 酮的方法, (4-氯丁氧基)喹啉-2(1H) - 酮和1-(苯并[b]噻吩-4-基)哌嗪的一种(立德吡唑) 在低于45℃的温度下由7-羟基 - 喹啉-2(1H) - 酮和1-溴-4-氯 - 丁烷制备中间体7-(4-氯丁氧基)喹啉-2(1H) - 酮。 然后用醇溶剂(例如甲醇)中的树脂(例如AMBER LITE IR 120h)处理粗中间体7-(4-氯丁氧基)喹啉-2(1H) - 酮,由此去除二聚体杂质D. 通过该方法获得的右旋哌唑基本上不含二聚体杂质D.苯扎哌唑是一种被称为血清素 - 多巴胺活性调节剂(SDAM)的D2多巴胺部分激动剂,用于治疗精神分裂症和作为重度抑郁症的辅助剂。