(1R,3aR,7R,7aR)-1-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-8-oxo-1,2,3,6,7,7a-hexahydro-3a,7-ethano-indene-4-carboxylic acid ethyl ester 在
甲醇 、
magnesium 作用下,
反应 5.0h,
生成
(1R,3aR,7R,7aR)-1-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-8-oxo-octahydro-3a,7-ethano-indene-4-carboxylic acid ethyl ester