Benzazepinone calcium channel blockers. 2. Structure activity and drug metabolism studies leading to potent antihypertensive agents. Comparison with benzothiazepinones
作者:David M. Floyd、S. David Kimball、John Krapcho、Jagabandhu Das、Chester F. Turk、Robert V. Moquin、Michael W. Lago、Keith J. Duff、Ving G. Lee
DOI:10.1021/jm00082a018
日期:1992.2
discover potent antihypertensive analogues of diltiazem (3a), we prepared 1-benzazepin-2-ones (4). Benzazepinones competitively displace radiolabeled diltiazem, and show the same absolute stereochemical preferences at the calcium channel receptor protein. Derivatives of 4 containing a trifluoromethyl substituent in the fused aromatic ring show potent and long-acting antihypertensive activity. Studies
作为发现地尔硫卓有效降压类似物的程序的一部分,我们制备了1-benzazepin-2-ones(4)。苯并ze庚因酮竞争性地取代了放射性标记的地尔硫卓,并在钙通道受体蛋白上表现出相同的绝对立体化学偏好。在稠合的芳族环中含有三氟甲基取代基的4的衍生物表现出有效的长效降压活性。对4的代谢的研究导致了代谢稳定的降压钙通道阻滞剂5a和5c。与第二代地尔硫卓类似物TA-3090(3e)相比,苯并ze庚酮5a是更长效且更有效的降压药。