New intermediates in the synthesis of 17.beta.-acyl-3-carboxy-androsta-3,5-dienes, of the formula: ##STR1## wherein R.sup.2 is 2-thiopyridyl, and R.sup.3 is C.sub.2 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4, or trifluoromethylsulfonyloxy. The above compounds are useful intermediates in producing testosterone 5.alpha.-reductase inhibitors which are useful topically for treatment of acne, seborrhea, female hirsutism, and systemically in treatment of benign prostatic hypertrophy.
合成17β-酰基-3-羧基-雄甾-3,5-二烯类化合物的新中间体,
化学式如下:##STR1## 其中R.sup.2是2-
硫代
吡啶基,R.sup.3是C.sub.2 -C.sub.4烷氧羰基,C.sub.1 -C.sub.4,或三
氟甲磺酰氧基。上述化合物是合成
睾酮5α-还原酶
抑制剂的有用中间体,可用于局部治疗痤疮、皮脂溢、女性多毛症,以及系统性治疗良性前列腺增生症。