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    • 2. 发明申请
    • PIPERAZINE SALT AND A PROCESS FOR THE PREPARATION THEREOF
    • 哌嗪盐及其制备方法
    • WO2010070369A8
    • 2011-04-28
    • PCT/HU2009000108
    • 2009-12-17
    • RICHTER GEDEON NYRTCZIBULA LASZLOAGAINE CSONGOR EVANOGRADI KATALINJUHASZ BALINTSEBOK FERENCGALAMBOS JANOSVAGO ISTVAN
    • CZIBULA LASZLOAGAINE CSONGOR EVANOGRADI KATALINJUHASZ BALINTSEBOK FERENCGALAMBOS JANOSVAGO ISTVAN
    • C07D295/135
    • C07D295/135
    • The invention relates to novel trans N-{4-{2-[4-(2,3-dichlorophenyl)-piperazine-l-il]-ethyl}- cyclohexylamine dihydrochloride monohydrate and a process for the preparation of the trans N- {4- {2-[4-(2,3-dichlorophenyl)-piperazine-l -il]-ethyl}-cyclohexylamine dihydrochloride monohydrate, said process comprising the steps a) reacting trans 2-{l-[4-(N-tert-butoxycarbonyl)amino]- cyclohexyl} -acetic acid ester with sodium borohydride and aluminium trichloride to give trans 2-{l-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-ethanol; b) reacting trans 2-{l-[4-(N-tert-butoxycarbonyl)-amino]cyclohexyl}-ethanol obtained with methanesulfonic acid chloride in the presence of an acid binding agent to give trans 2-{l-[4- (N-tert-butoxycarbonyl)-amino] -cyclohexyl} -ethyl methanesulfonate; c) reacting trans 2-{l-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-ethyl methanesulfonate obtained with 2,3-dichlorophenyl-piperazine in the presence of an acid binding agent to give trans 2-{l-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-carbamic acid tert-butylester; d) heating trans 2-{l-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-carbamic acid tert- butylester obtained to a temperature between 40-100°C in a mixture of aqueous hydrochloric acid/methanol to give trans N-{4-{2-[4-(2,3-dichlorophenyl)piperazine-l-il]-ethyl}- cyclohexylamine dihydrochloride monohydrate.
    • 本发明涉及新的反式N- {4- {2- [4-(2,3-二氯苯基) - 哌嗪-1-基] - 乙基} - 环己胺二盐酸盐一水合物,以及制备反式N- { 4- {2- [4-(2,3-二氯苯基) - 哌嗪-1-基] - 乙基} - 环己胺二盐酸盐一水合物,所述方法包括步骤a)使反式-2- {1- [4-(N- 叔丁氧基羰基)氨基] - 环己基} - 乙酸酯与硼氢化钠和三氯化铝反应,得到反式2- {1- [4-(N-叔丁氧基羰基) - 氨基] - 环己基} - 乙醇; b)将获得的反式2- {1- [4-(N-叔丁氧基羰基) - 氨基]环己基} - 乙醇与甲磺酰氯在酸结合剂存在下反应,得到反式-2- {1- [4- (N-叔丁氧基羰基) - 氨基] - 环己基} - 乙基甲磺酸酯; c)在酸结合剂存在下,使得到的与2,3-二氯苯基哌嗪的反式2- {1- [4-(N-叔丁氧基羰基) - 氨基] - 环己基} - 乙基甲基磺酸酯反应,得到反式-2- {1- [4-(N-叔丁氧基羰基) - 氨基] - 环己基} - 氨基甲酸叔丁酯; d)将得到的反式2- {1- [4-(N-叔丁氧基羰基) - 氨基] - 环己基} - 氨基甲酸叔丁酯加热至40-100℃的温度,在盐酸/甲醇水溶液 得到反式N- {4- {2- [4-(2,3-二氯苯基)哌嗪-1-基] - 乙基} - 环己胺二盐酸盐一水合物。