反应详情

In a manner analogous to that described in Example 1, using as starting materials 142 mg of Z-Phe-His-OH, 140 mg of H-Leu-Val-Ala-1(S)-benzyl-3-cyano-2(R,S)-hydroxypropyl amide, 54 mg of HOBt and 91 mg of DCCI, the title compound is obtained after flash chromatography (65 g of silica gel 60, 40-63 μm, eluant system B7). Rf (B7)=0.32.