(+)-(1S,4S,4aS,5S,6R,7S,8aR)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4,7-dimethyl-6-[(Z)-1-methyl-propenyl]-decahydro-naphthalen-1-ol 、
苯甲酸酐 在
4-二甲氨基吡啶 作用下,
以
二氯甲烷 为溶剂,
以90%的产率得到(+)-benzoic acid (1S,4S,4aS,5S,6R,7S,8aR)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4,7-dimethyl-6-[(Z)-1-methyl-propenyl]-decahydro-naphthalen-1-yl ester