[(3R,4R)-2,2-dimethyl-3-[(Z)-2-methylbut-2-enoyl]oxy-8-oxo-3,4-dihydropyrano[3,2-g]chromen-4-yl] (Z)-2-methylbut-2-enoate 、
p-(methoxycarbonyl)perbenzoic acid 、 [(3R,4R)-2,2-dimethyl-3-[(Z)-2-methylbut-2-enoyl]oxy-8-oxo-3,4-dihydropyrano[3,2-g]chromen-4-yl] 2,3-dimethyloxirane-2-carboxylate 、
p-(methoxycarbonyl)perbenzoic acid 生成
[(6R,7R)-6-(2,3-二甲基环氧乙烷-2-羰基)氧基-8,8-二甲基-2-氧代-6,7-二氢吡喃并[5,6-g]苯并吡喃-7-基]2,3-二甲基环氧乙烷-2-羧酸酯