Acetic acid (3S,4R,4aR,6S,6aS,12aR,12bS)-3-acetoxy-4-acetoxymethyl-4,6a,10,12b-tetramethyl-11,12-dioxo-9-pyridin-3-yl-1,3,4,4a,5,6,6a,10,11,12,12a,12b-dodecahydro-2H-7-oxa-10-aza-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70%的产率得到Acetic acid (3S,4R,4aR,6S,6aS,12aS,12bS)-3-acetoxy-4-acetoxymethyl-12-hydroxy-4,6a,10,12b-tetramethyl-11-oxo-9-pyridin-3-yl-1,3,4,4a,5,6,6a,10,11,12,12a,12b-dodecahydro-2H-7-oxa-10-aza-benzo[a]anthracen-6-yl ester