abstract |
(57) [Summary] [Objective] To provide an intermediate in the production of a renin inhibitory polypeptide. [Structure] Formula: [In the formula, L is (a) H, OH, or (b) β-NH BOC and β-H BOC are t-butoxycarbonyl, R 45 is a carbon number of 1 to 5. R 46 means isopropyl]. |