[(3S,4aR,6aR,6aR,6bR,8aS,11R,12S,12aS,14aR,14bS)-4,4,6a,6b,8a,12,14b-heptamethylspiro[1,2,3,4a,5,6,6a,7,8,9,10,12,12a,13,14,14a-hexadecahydropicene-11,2'-oxirane]-3-yl] acetate 、
四氯化锡 生成
(11-formyl-4,4,6a,6b,8a,12,14b-heptamethyl-2,3,4a,5,6,6a,7,8,9,10,11,12,12a,13,14,14a-hexadecahydro-1H-picen-3-yl) acetate