((3aS,3bR,10bR,11S,12S,12aS)-12-{[tert-butyl(dimethyl)silyl]oxy}-6-methoxy-2,2-dimethyl-5-oxo-3,3b,4,5,10b,11,12,12a-octahydrobis[1,3]dioxolo[4,5-c:4',5'-j]phenanthridin-11-yl)methyl acetate 在
lithium chloride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.5h,
以68%的产率得到((3aS,3bR,10bR,11S,12S,12aS)-12-{[tert-butyl(dimethyl)silyl]oxy}-6-hydroxy-2,2-dimethyl-5-oxo-3,3b,4,5,10b,11,12,12a-octahydrobis[1,3]dioxolo[4,5-c:4',5'-j]phenanthridin-11-yl)methyl acetate