Orally potent human renin inhibitors derived from angiotensinogen transition state: design, synthesis, and mode of interaction
作者:Kinji Iizuka、Tetsuhide Kamijo、Hiromu Harada、Kenji Akahane、Tetsuhiro Kubota、Hideaki Umeyama、Toshimasa Ishida、Yoshiaki Kiso
DOI:10.1021/jm00172a005
日期:1990.10
(2R,3S)-3-amino-4-cyclohexyl-2-hydroxybutyric acid, named cyclohexylnorstatine (2a). The optically pure cyclohexylnorstatine was efficiently prepared from Boc-L-cyclohexylalaninol (3), and the stereochemistry of 1a was established by X-ray crystal analysis. The analyses of interaction between 1a and human renin using modeling techniques indicated that (1) the cyclohexyl group of P1 and the naphthyl
为了合理设计有效的人肾素抑制剂,推导了人肾素复合物和血管紧张素原P1'Val的易裂位点P4 Pro的三维结构。基于这种结构,从血管紧张素原过渡态设计并合成了一种口服有效的人肾素抑制剂(1a)。抑制剂1a包含一个(2R)-3-(吗啉代羰基)-2-(1-萘基甲基)丙酰基残基(P4-P3),具有逆反酰胺键,L-组氨酸和一个新氨基酸(2R, 3S)-3-氨基-4-环己基-2-羟基丁酸,称为环己基去甲他汀(2a)。由Boc-L-环己基丙氨酸(3)有效地制备了光学纯的环己基去甲他汀,并通过X射线晶体分析确定了1a的立体化学。使用建模技术分析1a与人肾素之间的相互作用表明:(1)P1的环己基和P3的萘基分别容纳在较大的疏水性亚位点S1和S3中;(2)将P2 His的咪唑氢键合到Ser-233的侧链OH上,有助于抑制肾素。(3)将环己基去甲他汀异丙酯残基容纳在S1-S1'中。清楚地表明了立体化学在有效和特