Process for preparing tetrahydrocarbazolones
    3.
    发明授权
    Process for preparing tetrahydrocarbazolones 失效
    四氢咔唑酮的制备方法

    公开(公告)号:US4739072A

    公开(公告)日:1988-04-19

    申请号:US888254

    申请日:1986-07-23

    摘要: The invention relates to a process for the preparation of a compound of general formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a C.sub.1-10 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkyl-(C.sub.1-4)alkyl, C.sub.3-6 alkenyl, C.sub.3-10 alkynyl, phenyl or phenyl-(C.sub.1-3)alkyl group, and one of the groups represented by R.sup.2, R.sup.3 and R.sup.4 is a hydrogen atom or a C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.2-6 alkenyl or phenyl-(C.sub.1-3)alkyl group and each of the other two groups, which may be the same or different, represent a hydrogen atom or a C.sub.1-6 alkyl group;or a salt or protected derivative thereof, by cyclization of a compound of general formula (II) ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined above, or a salt or a protected derivative thereof.The compounds of formula (I) are potent and selective antagonists at "neuronal" 5-hydroxytryptamine receptors.

    摘要翻译: 本发明涉及一种制备通式(I)化合物的方法,其中R1表示氢原子或C1-10烷基,C3-7环烷基,C3-7环烷基 - (C1- 4)烷基,C 3-6烯基,C 3-10炔基,苯基或苯基 - (C 1-3)烷基,并且由R 2,R 3和R 4表示的基团之一是氢原子或C 1-6烷基,C 3 -7环烷基,C 2-6烯基或苯基 - (C 1-3)烷基,其它可以相同或不同的两个基团表示氢原子或C 1-6烷基; 或其盐或被保护的衍生物,通过使通式(II)化合物(II)其中R 1,R 2,R 3和R 4如上所定义的化合物或其盐或其保护的衍生物环化。 式(I)化合物是“神经元”5-羟色胺受体的有效和选择性拮抗剂。