Benzoic acid (1S,4R,4aS,5R,8R,8aR)-4,5,8-triacetoxy-1-acetoxymethyl-3-oxo-3,4,4a,5,8,8a-hexahydro-1H-isochromen-7-ylmethyl ester 在
四氧化锇 吡啶 、 sodium tetrahydroborate 、
N-甲基吲哚酮 、 Swern ox 、
乙酸酐 作用下,
生成 Benzoic acid (1S,4R,4aS,5S,6S,7R,8R,8aS)-4,5,8-triacetoxy-1-acetoxymethyl-6,7-dihydroxy-3-oxo-octahydro-isochromen-7-ylmethyl ester