A compound of formula (I): ##STR1## and the pharmaceutically acceptable base salts thereof, wherein: R is CO.sub.2 R.sup.12 where R.sup.12 is H or a biolabile ester-forming group, or R is tetrazol-5-yl, and either (a) R.sup.1 is ##STR2## and R.sup.2 is F, Cl, Br, I, CH.sub.3 or CF.sub.3, or (b) R.sup.1 is C.sub.3 -C.sub.6 alkyl and R.sup.2 is C.sub.2 -C.sub.4 alkyl, useful as steroid 5-.alpha.-reductase inhibitors.
一种化合物的
化学式(I):##STR1## 及其在药学上可接受的盐基,其中:R为CO.sub.2 R.sup.12,其中R.sup.12为H或
生物易降解的酯基,或者R为
四唑-5-基,且(a)R.sup.1为##STR2## 而R.sup.2为F、Cl、Br、I、CH.sub.3或CF.sub.3,或者(b)R.sup.1为C.sub.3 -C.sub.6烷基而R.sup.2为C.sub.2 -C.sub.4烷基,可用作类
固醇5-α-还原酶
抑制剂。