[(4aS,5S,6R,7R,8aS)-8a-ethenyl-5-hydroxy-6-(3-methoxy-3-oxoprop-1-en-2-yl)-4-methylidene-3-oxo-1,4a,5,6,7,8-hexahydroisochromen-7-yl] (1R,4S,6R,7S,11S,12R,13S,16R)-4-ethenyl-6-[2-(hydroxymethyl)prop-2-enoyloxy]-8-methylidene-9-oxo-2,10,18,19-tetraoxapentacyclo[14.2.1.01,13.04,12.07,11]nonadecane-16-carboxylate 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 10.0h,
生成