Indole and benzimidazole derivatives as steroid 5α-reductase inhibitors in the rat prostate

被引:19
作者
Takami, H [1 ]
Kishibayashi, N [1 ]
Ishii, A [1 ]
Kumazawa, T [1 ]
机构
[1] Kyowa Hakko Kogyo Co Ltd, Pharmaceut Res Inst, Shizuoka 4118731, Japan
关键词
enzyme inhibitors; substituent effects; 5; alpha-reductase; indole;
D O I
10.1016/S0968-0896(98)80018-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A novel series of indole and benzimidazole derivatives were synthesized and evaluated for their inhibitory activity of rat prostatic 5 alpha-reductase. Among these compounds, 4-{2-[1-(4,4'-dipropylbenzhydryl)indole-5-carboxamido]phenoxy)butyric acid (15) and its benzimidazole analogue 25 showed potent inhibitory activities for rat prostatic 5 alpha-reductase (IC50 values of 9.6+/-1.0 and 13+/-1.5 nM, respectively), with the potency very close to that of finasteride. Compound 30, in which the moiety between the benzene ring and amide bond was replaced by quinolin-4-one ring, showed almost equipotent activity (IC50=19+/-6.2 nM) with the correspondent amide derivative 13. This result was consistent with the previous observation that the coplanarity of this moiety might contribute to the potent inhibitory activity. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2441 / 2448
页数:8
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