Methyl 2-[[2-[butyl-[2-(3-hydroxyphenyl)acetyl]amino]-4-[(2-methylpropan-2-yl)oxycarbonylamino]butanoyl]amino]-3-(4-fluoro-3-nitrophenyl)propanoate 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以72%的产率得到Methyl 10-butyl-11-[2-[(2-methylpropan-2-yl)oxycarbonylamino]ethyl]-18-nitro-9,12-dioxo-2-oxa-10,13-diazatricyclo[14.2.2.13,7]henicosa-1(18),3,5,7(21),16,19-hexaene-14-carboxylate