Process for producing tetrazolylated biphenylmethane derivatives
    2.
    发明授权
    Process for producing tetrazolylated biphenylmethane derivatives 失效
    制备四唑基联苯甲烷衍生物的方法

    公开(公告)号:US5912353A

    公开(公告)日:1999-06-15

    申请号:US973755

    申请日:1997-12-23

    IPC分类号: C07D417/10 C07D285/12

    CPC分类号: C07D417/10

    摘要: The present invention relates to a process for producing a tetrazolylated biphenylmethane derivatives (6) or salts thereof in accordance with the below-described reaction scheme wherein R.sup.1 represents an alkyl; R.sup.2 represents H, etc.; Z represents a halogen, etc.; and A represents a cycloalkene, etc. According to the above process, a tetrazolylated biphenylmethane derivative can be industrially and advantageously produced with short steps.

    摘要翻译: PCT No.PCT / JP96 / 01737第 371 1997年12月23日第 102(e)1997年12月23日PCT PCT 1996年6月24日PCT公布。 第WO97 / 01557号公报 日本1997年1月16日本发明涉及根据下述反应方案制备四唑基化联苯甲烷衍生物(6)或其盐的方法,其中R 1表示烷基; R2代表H等; Z表示卤素等; 并且A表示环烯烃等。根据上述方法,四唑基化联苯甲烷衍生物可以在工业上有利地以短步骤生产。

    Bile acid derivatives, their salts and production thereof
    8.
    发明授权
    Bile acid derivatives, their salts and production thereof 失效
    胆汁酸衍生物及其盐及其生产

    公开(公告)号:US4810422A

    公开(公告)日:1989-03-07

    申请号:US91957

    申请日:1987-09-01

    CPC分类号: C07J41/0055 C07J41/0061

    摘要: A bile acid derivative of the following formula (I): ##STR1## wherein: X is a halogen atom; R.sub.1 is a hydrogen atom or a lower alkyl group; Y is ##STR2## (wherein n is an integer of from 0 to 5); each of R.sub.2 and R.sub.3 is a hydrogen atom or a hydroxyl group; R.sub.4 is a hydroxyl group, lower alkoxyl group, ##STR3## (wherein R.sub.5 is a hydrogen atom or a lower alkoxy group, R.sub.6 is a carboxyl group, benzyloxycarbonyl group or sulfonyl group, or a salt thereof, and m is an integer of from 1 to 4); the intermittent line, . . . , is an .alpha.-bond; and the wavy line, , is an .alpha.- or .beta.-bond, and a salt thereof, and a process for production thereof.This bile acid derivative has carcinostatic activity and yet is of low toxicity. Accordingly, this compound can be used as a carcinostatic agent.