Acetic acid (2S,4aS,5S)-5-(tert-butyl-dimethyl-silanyloxy)-1,1,4a-trimethyl-7-oxo-1,2,3,4,4a,5,6,7-octahydro-naphthalen-2-yl ester 在
sodium tetrahydroborate 、 ceric chloride heptahydrate 作用下,
以
乙醇 、
二氯甲烷 为溶剂,
生成 Acetic acid (2S,4aS,5S,7R)-5-(tert-butyl-dimethyl-silanyloxy)-7-hydroxy-1,1,4a-trimethyl-1,2,3,4,4a,5,6,7-octahydro-naphthalen-2-yl ester