The synthesis and structure-activity relationships of transition-state renin inhibitors containing the homostatine analogues at the scissile bond are described. These inhibitors incorporate the amino acid side chains corresponding to positions 7-12 (P4-P2') of angiotensinogen. Ethyl, 2-hydroxyethyl and 3-hydroxypropyl groups at position 2 of the homostatine analogues (P1') are more effective for increasing potency than the isopropyl group. A combination of residues at P1, P3 and P4 is important for potency and this result auggests that S1, S3 and S4 form a huge hydrophobic core together in renin.
描述了含有在切割键处的同胺酸类似物的过渡态肾素
抑制剂的合成及其结构-活性关系。这些
抑制剂包含了与
血管紧张素原第7-12位(P4-P2')相对应的
氨基酸侧链。在同胺酸类似物的第2位(P1')上的乙基、2-羟乙基和3-羟丙基比异丙基更有效地增加了效力。P1、P3和P4位点的
氨基酸残基组合对效力很重要,结果表明S1、S3和S4在肾素中共同形成了一个巨大的疏
水核心。