Compounds of formula (I):
[wherein : R1 is hydrogen, alkyl, aryl-substituted alkyl or aromatic heterocyclic-substituted alkyl ; R2 is: aryl-substituted alkyl, aromatic heterocyclic-substituted alkyl or diarylamino; and R3 is carboxy or a group of formula -CONHS02 R4 wherein R4 is alkyl] ; and pharmaceutically acceptable salts and esters thereof have valuable 5α-reductase inhibitory activity and can thus be used for the treatment and prophylaxis of, inter alia, prostatic hypertrophy as well as other disorders arising from excess levels of 5α-dihydro-testosterone.
式(I)化合物:
[其中 :R1 是氢、烷基、芳基取代的烷基或芳香杂环取代的烷基;R2 是:芳基取代的烷基、芳香杂环取代的烷基或二芳基
氨基;以及 R3 是羧基或式 -CONHS02 R4 的基团,其中 R4 是烷基];及其药学上可接受的盐类和
酯类具有重要的 5α 还原酶抑制活性,因此可用于治疗和预防前列腺肥大以及因 5α 二氢
睾酮水平过高而引起的其他疾病。