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 在
sodium tetrahydroborate 、 Swern ox 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