methyl (2S)-2-[{(2S,4R)-2-amino-5-benzyloxycarbonylamino-4-hydroxy-pentanoyl}-(methyl)-amino]-3-{4'-benzyloxy-3'-[(2S)-2-benzyloxycarbonylamino-3-oxo-3-pentafluorophenoxy-propyl]-4-chloro-biphenyl-3-yl}-propanoate hydrochloride 在
三乙胺 作用下,
以
氯仿 为溶剂,
以46%的产率得到methyl (8S,11S,14S)-17-benzyloxy-14-benzyloxycarbonylamino-11-((2R)-3-benzyloxycarbonylamino-2-hydroxy-propyl)-5-chloro-9-methyl-10,13-dioxo-9,12-diaza-tricyclo[14.3.1.1
2,6]henicosa-1(20),2(21),3,5,16,18-hexaene-8-carboxylate