Design and synthesis of a potent and specific renin inhibitor with a prolonged duration of action in vivo
作者:Suvit Thaisrivongs、Donald T. Pals、Douglas W. Harris、Warren M. Kati、Steve R. Turner
DOI:10.1021/jm00160a049
日期:1986.10
A structure-activity analysis of peptides containing backbone C alpha-methyl and N alpha-methyl modifications led to the discovery of potent renin inhibitors with high metabolic stability. In vitro, Boc-Pro-Phe-N alpha-MeHis-Leu psi-[CHOHCH2]Val-Ile-Amp (XII) is a potent inhibitor of human plasma renin with IC50 of 0.26 nM. It is a much weaker inhibitor of other aspartic proteases such as porcine pepsin
对含有主链Cα-甲基和Nα-甲基修饰的肽进行结构活性分析导致发现了具有高代谢稳定性的有效肾素抑制剂。在体外,Boc-Pro-Phe-Nα-MeHis-Leupsi- [CHOHCH2] Val-Ile-Amp(XII)是人血浆肾素的有效抑制剂,IC50为0.26 nM。它是其他天冬氨酸蛋白酶(如猪胃蛋白酶或牛组织蛋白酶D)的弱得多的抑制剂(IC50 = 6 microM)。已表明它不会被大鼠肝匀浆制剂降解。在体内,它抑制了血浆血浆肾素的活性并降低了呋塞米治疗的食蟹猴的血压。静脉注射5 mg / kg时,明显的降压反应持续3个小时以上。