[(3aR,6R,7S,8S,8aR)-4-acetyloxy-2,2-diethyl-7,8-dihydroxy-3a,4,6,7,8,8a-hexahydro-[1,3]dioxolo[4,5-c]oxepin-6-yl]methyl acetate 、
苯甲酰氯 在
吡啶 作用下,
以40%的产率得到[(3aR,6R,7R,8R,8aR)-4-acetyloxy-6-(acetyloxymethyl)-8-benzoyloxy-2,2-diethyl-3a,4,6,7,8,8a-hexahydro-[1,3]dioxolo[4,5-c]oxepin-7-yl] benzoate