14ALPHA,17ALPHA-C2-ÜBERBRÜCKTE 19-NOR-PROGESTERONDERIVATE
    1.
    发明公开
    14ALPHA,17ALPHA-C2-ÜBERBRÜCKTE 19-NOR-PROGESTERONDERIVATE 失效
    14ALPHA,17α-乙烯C2-桥接-19-去甲孕酮衍生物

    公开(公告)号:EP0799238A2

    公开(公告)日:1997-10-08

    申请号:EP95943195.0

    申请日:1995-12-23

    IPC分类号: A61K31 A61P43 C07J53 C07J71

    摘要: The invention concerns 14,17-C2-bridged steroids of general formula (I), wherein: R3 represents an oxygen atom, the hydroxy amino group or two hydrogen atoms; R6 represents either a hydrogen, fluorine, chlorine or bromine atom or a C¿1?-C4 alkyl group at the α or β position, R?6' and R7¿ then representing hydrogen atoms; or alternatively, R6 represents a hydrogen, fluorine, chlorine or bromine atom or a C¿1?-C4 alkyl group, R?6' and R7¿ then representing a common additional bond; R7 represents a C¿1?-C4 alkyl group at the α or β position, R?6 and R6'¿ then representing hydrogen atoms; or alternatively R?6 and R7¿ together represent a methylene group at the α or β position and R6' represents a hydrogen atom; or R?6 and R6'¿ together represent an ethylene or methylene group and R7 represents a hydrogen atom; R?9 and R10¿ each represent a hydrogen atom or a common bond; R?11 and R12¿ each represent a hydrogen atom or a common bond; R13 represents a methyl or ethyl group; R15 represents a hydrogen atom or a C¿1?-C3 alkyl group; R?16 and R16'¿ independently of one another represent a hydrogen atom, a C¿1?-C3 alkyl group, or a C2-C4 alkenyl group, or together represent a C1-C3 alkylidene group; R?15 and R16¿ represent a common bond and R16' represents a hydrogen atom or a C¿1?-C3 alkyl group, or alternatively R?15 and R16¿ together represent a ring of the partial formula (i) shown, in which n = 1 and 2 and X represents a methylene group or an oxygen atom; and R16' represents a hydrogen atom; R171 represents a hydrogen atom or a C¿1?-C3 alkyl group; R17?2¿ represents a hydrogen atom, a C¿1?-C3 alkyl group or a C2-C4 alkenyl group; R17?1'¿ and R172' each represent a hydrogen atom or a common bond; R21 represents a hydrogen atom or a C¿1?-C3 alkyl group; and R?21'¿ represents a hydrogen atom, C¿1?-C3 alkyl group or hydroxy group. The claimed compounds do not include 14,17-ethano-19-norpregn-4-en-3,20-dione. The novel compounds, unlike the one disclaimed, show a high level of gestagenic activity even after peroral administration and are suitable for use in the production of medicaments.