Acetic acid (3S,4R,4aR,6S,6aS,12aR,12bS)-3-acetoxy-4-acetoxymethyl-4,6a,12b-trimethyl-11,12-dioxo-9-phenyl-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-2H,11H-7,10-dioxa-benzo[a]anthracen-6-yl ester 在
sodium tetrahydroborate 、 cerium(III) chloride 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以100%的产率得到Acetic acid (3S,4R,4aR,6S,6aS,11S,12aR,12bS)-3-acetoxy-4-acetoxymethyl-11-hydroxy-4,6a,12b-trimethyl-12-oxo-9-phenyl-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-2H,11H-7,10-dioxa-benzo[a]anthracen-6-yl ester