2-{(3S,4S)-4-[(2R,3S)-2-(3,4-Dimethoxy-phenyl)-3-hydroxy-5,7-dimethoxy-chroman-6-yl]-3-formyl-5,6,7-trimethoxy-1-oxo-isochroman-8-yl}-3,4,5-trimethoxy-benzoic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 0.33h,
生成 2-{(3S,4S)-4-[(2R,3S)-2-(3,4-Dimethoxy-phenyl)-3-hydroxy-5,7-dimethoxy-chroman-6-yl]-3-hydroxymethyl-5,6,7-trimethoxy-1-oxo-isochroman-8-yl}-3,4,5-trimethoxy-benzoic acid methyl ester; hydrate