(2aS,7aR,7bS)-4-(tert-Butyl-dimethyl-silanyloxy)-1,1-diethoxy-6,6-dimethyl-2a,3,5,6,7,7a-hexahydro-1H,2H-cyclobuta[e]indene-7b-carboxylic acid ethyl ester 在
lithium aluminium tetrahydride 作用下,
以
乙醚 为溶剂,
反应 0.5h,
以97%的产率得到[(2aS,7aR,7bR)-4-(tert-Butyl-dimethyl-silanyloxy)-1,1-diethoxy-6,6-dimethyl-2a,3,5,6,7,7a-hexahydro-1H,2H-cyclobuta[e]inden-7b-yl]-methanol