Synthesis and biological activity of carboxylic acid replacement analogs of the potent angiotensin converting enzyme inhibitor 5(S)-benzamido-4-oxo-6-phenylhexanoyl-L-proline
作者:Ronald G. Almquist、Wan Ru Chao、Clive Jennings-White
DOI:10.1021/jm00146a015
日期:1985.8
The carboxylic acid group on the proline of 1 was replaced by a phosphoric acid, a hydroxamic acid, and a tetrazole to give compounds 2-4, respectively. Testing of 2-4 as angiotensin converting enzyme (ACE) inhibitors gave I50 values of 100, 1.6, and 22 microM, respectively, compared to 0.07 microM for 1. A hydroxamic acid derivative of the ketomethylene pentapeptide analogue 18 was then synthesized
脯氨酸1上的羧酸基团被磷酸,异羟肟酸和四唑取代,分别得到化合物2-4。测试2-4种血管紧张素转化酶(ACE)抑制剂的I50值分别为100、1.6和22 microM,而1的值为0.07 microM。然后合成了酮亚甲基五肽类似物18的异羟肟酸衍生物。该化合物17的ACE I50为0.011 microM,而18的0.0076 microM,口服10 mg / kg的17肾高血压大鼠对血压或心率无影响。