(4aS,8S,8aR)-7-Benzyloxy-8-((1S,2R)-1,3-bis-benzyloxy-2-methoxy-propyl)-1,4-dioxo-1,3,4,5,8,8a-hexahydro-2H-naphthalene-4a-carboxylic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以80%的产率得到(4S,4aS,8S,8aR)-7-Benzyloxy-8-((1S,2R)-1,3-bis-benzyloxy-2-methoxy-propyl)-4-hydroxy-1-oxo-1,3,4,5,8,8a-hexahydro-2H-naphthalene-4a-carboxylic acid methyl ester