3-demethoxycarbonyl-3-(methylcarbonyloxy)methylanhydrovinblastine 在
氢氟酸 、
五氟化锑 作用下,
以
氯仿 为溶剂,
以31%的产率得到methyl (13S,15S,17R)-13-[(1R,9R,10R,11R,12R,19R)-11-acetyloxy-10-(acetyloxymethyl)-12-ethyl-10-hydroxy-5-methoxy-8-methyl-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2,4,6,13-tetraen-4-yl]-17-(1,1-difluoroethyl)-1,11-diazatetracyclo[13.3.1.04,12.05,10]nonadeca-4(12),5,7,9-tetraene-13-carboxylate