benzyl 2(S)-(5-benzyloxycarbonylamino-2(S)-aminopentanoylamino)-3-[4,4'-bisbenzyloxy-3'-(2-(S)-benzyloxycarbonylamino-2-pentafluorophenyloxycarbonylethyl)biphenyl-3-yl]propionate hydrochloride 在
三乙胺 作用下,
以
氯仿 为溶剂,
以93%的产率得到benzyl 5,17-bisbenzyloxy-14(S)-benzyloxycarbonylamino-11(S)-(3-benzyloxycarbonylaminopropyl)-10,13-dioxo-9,12-diazatricyclo[14.3.1.1
2,6]-henicosa-1(19),2,4,6(21),16(20),17-hexaene-8(S)-carboxylate