2-[(3S,4S)-4-[(2R,3S)-2-(3,4-Dimethoxy-phenyl)-3-hydroxy-5,7-dimethoxy-chroman-6-yl]-5,6,7-trimethoxy-1-oxo-3-((1S,2R,3R)-1,2,3,4-tetrahydroxy-butyl)-isochroman-8-yl]-3,4,5-trimethoxy-benzoic acid methyl ester 在
sodium tetrahydroborate 、
sodium periodate 作用下,
以
甲醇 、
水 为溶剂,
反应 22.33h,
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