Compositions and methods employing 2-oxa- or -aza-pregnan compounds for
申请人:Teikoku Hormone Mfg. Co., Ltd.
公开号:US04914106A1
公开(公告)日:1990-04-03
A compound represented by the following formula ##STR1## wherein A represents a hydrogen atom or a lower alkanoyl group, Z represents an oxygen atom or the group ##STR2## in which R represents a hydrogen atom or a lower alkyl group, and X represents a halogen atom, the compound being useful for controlling androgen-dependent diseases, particularly for preventing abortion or for contraception.