4-(6-bromo-3-chloro-2-fluorophenyl)-5-hydroxyfuran-2(5H)-one 、 methyl N-[(10R,14S)-14-amino-10-methyl-9-oxo-8,16-diazatricyclo[13.3.1.0
2,7]-nonadeca-1(19),2(7),3,5,15,17-hexaen-5-yl]carbamate bis-trifluoroacetic acid salt 在
sodium cyanoborohydride 、
溶剂黄146 作用下,
以
氯仿 为溶剂,
反应 18.0h,
以5.8%的产率得到methyl N-[(10R,14S)-14-[4-(6-bromo-3-chloro-2-fluorophenyl)-2-oxo-2,5-dihydro-1H-pyrrol-1-yl]-10-methyl-9-oxo-8,16-diazatricyclo [13.3.1.0
2'
7]nonadeca-1(19),2(7),3,5,15,17-hexaen-5-yl]carbamate trifluoroacetic acid