著者

飯塚 欣二 上條 哲聖 原田 弘 赤羽 健司 久保田 哲弘 江藤 裕夫 島岡 厳 椿 敦 村上 真 山口 敏章 伊與部 亮 梅山 秀明 木曽 良明

出版者

The Pharmaceutical Society of Japan

雑誌

Chemical and Pharmaceutical Bulletin (ISSN:00092363)

巻号頁・発行日

vol.38, no.9, pp.2487-2493, 1990-09-25 (Released:2008-03-31)

参考文献数

33

被引用文献数

7 11

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The synthesis and the structure-activity relationships of renin inhibitors designed from the angiotensinogen transition state are described. These inhibitors contained residues modified at P1-P1, , P2, and P4-P3. Decrease in the size of side chain alkyl group in norstatine analog at P1 diminished the inhibitory activities of the compounds. Compound 5j, which contained valine residue instead of histidine residue at P2, inhibited potently cathepsin D (IC50=6.0×10-9 M) and pepsin (IC50=3.5×10-7 M) to the same extent as renin (IC50=8.5×10-10 M), and thus was not specific for renin. The reduction of the β-carbonyl group to methylene group in β-carbonylpropionyl residue at P4-P3 decreased the potency about 2 orders against human renin (5i : IC50=1.1×10-7 M vs. 1 : IC50=2.4 ×10-9 M). These results confirmed the rationality of our analysis of the interaction between an orally potent human renin inhibitor 1 and the active site of human renin using modeling techniques, showing that 1 fits the active site of renin favorably. The experimental details of the synthesis are presented.