While searching for novel nonsteroidal inhibitors of human and rat prostatic 5α-reductases, we found a new series of indoline and aniline derivatives that showed potent inhibitory activities for both enzymes. Among them, 3-chloro-4-1-(4-phenoxybenzyl)indolin-5-yl]oxy}benzoic acid (2e, YM-36117) showed a more portent inhibitory activity for the human enzyme than ONO-3805 with an IC50 value of 5.3 nM and a reduced rat prostatic dihydrotestosterone (DHT) concentration by oral administration. The synthesis and the structure-activity relationships of these indoline and aniline derivatives are presented.
在寻找新型人类和大鼠前列腺5α-还原酶的非甾体
抑制剂时,我们发现了一系列新的
吲哚啶和芳胺衍
生物,这些化合物对这两种酶均表现出强效的抑制活性。其中,3-
氯-4-1-(4-苯氧苄基)
吲哚啶-5-基}氧基
苯甲酸(2e,YM-36117)对人类酶的抑制活性比ONO-3805更强,IC50值为5.3 nM,并且通过口服给药降低了大鼠前列腺二氢
睾酮(DHT)浓度。这些
吲哚啶和芳胺衍
生物的合成及其结构-活性关系进行了阐述。