PIPERAZINE SALT AND A PROCESS FOR THE PREPARATION THEREOF
    1.
    发明申请
    PIPERAZINE SALT AND A PROCESS FOR THE PREPARATION THEREOF 有权
    哌嗪盐及其制备方法

    公开(公告)号:US20110275816A1

    公开(公告)日:2011-11-10

    申请号:US13140232

    申请日:2009-12-17

    IPC分类号: C07D241/04

    CPC分类号: C07D295/135

    摘要: The invention relates to novel trans N-{4-{2-[4-(2, 3-dichlorophenyl)-piperazine-1-il]-ethyl}-cyclohexylamine dihydrochloride monohydrate and a process for the preparation of the trans N-{4-{2-[4-(2,3-dichlorophenyl)-piperazine-1-il]-ethyl}-cyclohexylamine dihydrochloride monohydrate, said process comprising the steps a) reacting trans 2-{1-[4-(N-tert-butoxycarbonyl) amino]-cyclohexyl}-acetic acid ester with sodium borohydride and aluminium trichloride to give trans 2-{1-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-ethanol; b) reacting trans 2-{1-[4-(N-tert-butoxycarbonyl)-amino]cyclohexyl}-ethanol obtained with methanesulfonic acid chloride in the presence of an acid binding agent to give trans 2-{1-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-ethyl methanesulfonate; c) reacting trans 2-{1-[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-{1-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-carbamic acid tert-butylester; d) heating trans 2-{1-[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-1-il]-ethyl}-cyclohexylamine dihydrochloride monohydrate.

    摘要翻译: 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及其制备方法, 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)使得到的反式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)在酸结合剂的存在下,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} - 氨基甲酸叔丁基酯加热至40-100℃的温度,在盐酸/ 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。

    Piperazine salt and a process for the preparation thereof
    5.
    发明授权
    Piperazine salt and a process for the preparation thereof 有权
    哌嗪盐及其制备方法

    公开(公告)号:US08569496B2

    公开(公告)日:2013-10-29

    申请号:US13140232

    申请日:2009-12-17

    IPC分类号: C07D295/135

    CPC分类号: C07D295/135

    摘要: The invention relates to novel trans N-{4-{2-[4-(2,3-dichlorophenyl)-piperazine-1-il]-ethyl}-cyclohexylamine dihydrochloride monohydrate and a process for the preparation of the trans N-{4-{2-[4-(2,3-dichlorophenyl)-piperazine-1-il]-ethyl}-cyclohexylamine dihydrochloride monohydrate, said process comprising the stepsa) reacting trans 2-{1-[4-(N-tert-butoxycarbonyl)amino]-cyclohexyl}-acetic acid ester with sodium borohydride and aluminum trichloride to give trans 2-{1-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-ethanol;b) reacting trans 2-{1-[4-(N-tert-butoxycarbonyl)-amino]cyclohexyl}-ethanol obtained with methanesulfonic acid chloride in the presence of an acid binding agent to give trans 2-{1-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-ethyl methanesulfonate;c) reacting trans 2-{1-[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-{1-[4-(N-tert-butoxycarbonyl)-amino]-cyclohexyl}-carbamic acid tert-butylester; d) heating trans 2-{1-[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-1-il]-ethyl}-cyclohexylamine dihydrochloride monohydrate.

    摘要翻译: 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及其制备方法, 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)使得到的反式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)在酸结合剂的存在下,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} - 氨基甲酸叔丁基酯加热至40-100℃的温度,在盐酸/ 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。