catharanthine tartrate 、
3-demethoxycarbonyl-3-(3',4'-methylenedioxybenzoylamino)methylvindoline 在
盐酸 、 iron(III) chloride 、
ammonium hydroxide 、 sodium tetrahydroborate 作用下,
以
水 为溶剂,
反应 8.25h,
以50%的产率得到methyl (13S,15R)-13-[(1R,9R,10S,11R,12R,19R)-11-acetyloxy-10-[(1,3-benzodioxole-5-carbonylamino)methyl]-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-ethyl-1,11-diazatetracyclo[13.3.1.04,12.05,10]nonadeca-4(12),5,7,9,16-pentaene-13-carboxylate