methyl (4aR,6R,7aS,7bR)-6-[(tert-butyldimethylsilyloxy)methyl]-6,7b-dimethyl-4-oxo-2,4,4a,5,6,7,7a,7b-octahydro-1H-cyclobuta[e]indene-3-carboxylate 在
sodium tetrahydroborate 、 cerium(III) chloride 作用下,
以
甲醇 为溶剂,
反应 0.75h,
以87%的产率得到methyl (4S,4aR,6R,7aS,7bR)-6-[(tert-butyldimethylsilyloxy)methyl]-4-hydroxy-6,7b-dimethyl-2,4,4a,5,6,7,7a,7b-octahydro-1H-cyclobuta[e]indene-3-carboxylate