Process for the preparation of propargyl ammonium-chloride
    1.
    发明授权
    Process for the preparation of propargyl ammonium-chloride 失效
    炔丙基氯化铵的制备方法

    公开(公告)号:US5449828A

    公开(公告)日:1995-09-12

    申请号:US353816

    申请日:1994-12-09

    摘要: The present invention relates to a process for the preparation of L-isomer of propargyl-ammonium-chloride derivatives of the formula (I) ##STR1## by decomposing D-tartarte of L-isomer of the amine of the general ##STR2## wherein y is hydrogen or fluoro and by reacting the obtained L-issomer amine of the formula (II) in the presence of a base with a halide of the formula (V), X--CH.sub.2 --C.ident.CCH wherein X is halogen and by reacting the so obtained L-isomer of the Formula (III) ##STR3## with hydrogen-chloride in an organic solvent, wherein x is a halogen atom,y is a hydrogen or fluorine atom.

    摘要翻译: 本发明涉及通过将通用化合物(I)的胺的L-异构体的D-异构体分解而制备式(I)的炔丙基氯化铵衍生物的L-异构体的方法 (II)其中y是氢或氟,并且通过使式(II)所得的L-取代的胺在碱的存在下与式(V)的卤化物反应,X-CH 2 -C = CCH,其中X 是通过使所得到的式(III)的III型异构体在有机溶剂中与氯化氢反应,其中x是卤素原子,y是氢或氟原子。

    Process for the preparation of depogen
    4.
    发明授权
    Process for the preparation of depogen 失效
    制备原料的方法

    公开(公告)号:US4820838A

    公开(公告)日:1989-04-11

    申请号:US912997

    申请日:1986-09-26

    CPC分类号: C07D217/20 C07D473/08

    摘要: The invention relates to a process for the preparation of a new crystalline monohydrate of 1-(3', 4'-diethoxy-benzyl-6, 7-diethoxy-3,4-dihydro-isoquinolinium-theophylline-7-acetate and if desired of pure 1-(3', 4'-diethoxy-benzyl)-6,7-diethoxy-3, 4-dihydro-isoquinolinium-theophylline-7-acetate free of contaminating oxidation products which comprises reacting 1-(3',4'-diethoxy-benzyl)-6,7-diethoxy-3,4-dihydro-isoquinolinium with theophylline-7-acetate acid in the presence of water and one or more organic solvent(s) and if desired dehydrating the 1-(3',4'-diethoxy-benzyl) 6,7-diethoxy-3,4-dihydro-isoquinolinium-theophylline-7-acetate-monohydrate thus obtained.

    摘要翻译: 本发明涉及一种制备1-(3',4'-二乙氧基 - 苄基-6,7-二乙氧基-3,4-二氢 - 异喹啉 - 茶碱-7-乙酸酯的新结晶一水合物的方法,如果需要 纯的1-(3',4'-二乙氧基 - 苄基)-6,7-二乙氧基-3,4-二氢 - 异喹啉鎓 - 茶碱-7-乙酸酯不含污染的氧化产物,其包括使1-(3',4 N'-二乙氧基 - 苄基)-6,7-二乙氧基-3,4-二氢 - 异喹啉与茶碱-7-乙酸在水和一种或多种有机溶剂的存在下反应,如果需要,将1-(3 ',4'-二乙氧基 - 苄基)6,7-二乙氧基-3,4-二氢 - 异喹啉鎓 - 茶碱-7-乙酸酯一水合速率。