Compounds of the formula ##STR1## or a pharmaceutically acceptable salt or ester thereof, wherein R.sup.1 is selected from the group consisting of hydrogen and C.sub.1-10 alkyl; R.sup.2 is selected from the group consisting of hydrogen and C.sub.1-10 alkyl; R.sup.3 is selected from the group consisting of C.sub.1-10 alkoxyl, C.sub.1-10 alkyl and cyano; R.sup.4 is selected from the group consisting of C.sub.1-10 alkenyloxyl, C.sub.1-10 alkoxyl, C.sub.1-10 alkyl, C.sub.1-10 alkylcarbamic, C.sub.1-10 alkylcarbonyloxyl, carbonyl, hydroxyl, and --NHR.sup.5, and R.sup.5 is selected from the group consisting of hydrogen and C.sub.1-10 alkylcarbonyl. Such compounds are useful as selective antagonists of testosterone 5.alpha.-reductase 1.
式##
STR1##的化合物或其药学上可接受的盐或
酯,其中R.sup.1选自由
氢和C.sub.1-10烷基组成的群;R.sup.2选自由
氢和C.sub.1-10烷基组成的群;R.sup.3选自由C.sub.1-10烷
氧基、C.sub.1-10烷基和
氰基组成的群;R.sup.4选自由C.sub.1-10
烯氧基、C.sub.1-10烷
氧基、C.sub.1-10烷基、C.sub.1-10烷基
氨基甲酸、C.sub.1-10烷基羰基
氧基、羰基、羟基和--NHR.sup.5的群,R.sup.5选自由
氢和C.sub.1-10烷基羰基组成的群。这些化合物可用作
睾酮5α-还原酶1的选择性
拮抗剂。