Discovery of benzimidazole derivatives as orally active renin inhibitors: Optimization of 3,5-disubstituted piperidine to improve pharmacokinetic profile
S3 pocket. In the course of modification, renin inhibitory activity was enhanced by the formation of an additional hydrogen bonding with the hydroxyl group of Thr77. Consequently, a series of novel benzimidazole derivatives were discovered as potent and orally bioavailable renininhibitors. Among those, compound 13 exhibited more than five-fold of plasmarenin inhibition than aliskiren in cynomolgus
Compounds represented by the formulas
wherein each symbol is as defined in the specification, and a prodrug thereof have a superior renin inhibitory activity, and are useful as agents for the prophylaxis or treatment of hypertension, various organ damages attributable to hypertension and the like.
Provision of crystal of 1-(4-methoxybutyl)-N-(2-methylpropyl)-N-[(3S,5R)-5-(morpholin-4-ylcarbonyl)piperidin-3-yl]-1H-benzimidazole-2-carboxamide hydrochloride which has a superior rennin inhibitory activity and is useful as a prophylactic or therapeutic agent for hypertension and various organ disorders caused by hypertension, and the like. Crystal of 1-(4-methoxybutyl)-N-(2-methylpropyl)-N-[(3S,5R)-5-(morpholin-4-ylcarbonyl)piperidin-3-yl]-1H-benzimidazole-2-carboxamide hydrochloride having an X-ray powder diffraction pattern showing characteristic peaks at interplanar spacings (d) of around 26.43±0.2, 7.62±0.2 and 4.32±0.2 angstroms.
Compounds represented by the formulas (I) (II) wherein each symbol is as defined in the specification, and a pro-drug thereof have a superior renin inhibitory activity, and are useful as agents for the prophylaxis or treatment of hypertension, various organ damages attributable to hypertension and the like.