Journal of Medicinal Chemistry p. 3826 - 3839 (2016)
Update date:2022-08-15
Topics:
Zhao, Fei
Li, Jing
Chen, Ying
Tian, Yanxin
Wu, Chenglin
Xie, Yanan
Zhou, Yu
Wang, Jiang
Xie, Xin
Liu, Hong
A series of indoline and indole derivatives were designed, synthesized, and evaluated as selective α1A-adrenergic receptor (α1A-AR) antagonists for the treatment of benign prostatic hyperplasia (BPH). In this study, two highly selective and potent α1A-AR antagonists, compounds (R)-14r (IC50 = 2.7 nM, α1B/α1A = 640.1, α1D/α1A = 408.2) and (R)-23l (IC50 = 1.9 nM, α1B/α1A = 1506, α1D/α1A = 249.6), which exhibited similar activities and better selectivities in cell-based calcium assays as compared with the marketed drug silodosin (IC50 = 1.9 nM, α1B/α1A = 285.9, α1D/α1A = 14.4), were identified. In the functional assays with isolated rat tissues, compounds (R)-14r and (R)-23l also showed high potency and uroselectivity. Most importantly, (R)-14r and (R)-23l can significantly decrease the micturition frequency and increase the mean voided volume of the BPH rats in a dose-dependent manner, making them worthy of further investigation for the development of anti-BPH agents.
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