科罗索酸苄酯; (2alpha,3beta)-2,3-二羟基乌苏-12-烯-28-酸苄酯

2,3-二乙酰氧基科罗索酸; (2alpha,3beta)-2,3-二乙酰氧基乌苏-12-烯-28-酸

熊果酸苄酯

乌索酸苄酯

benzyl (1S,2R,4aS,6aS,6bR,8aR,12aR,12bR,14bS)-10-acetoxy-1,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,6b,7,8,8a,9,12,12a,12b,13,14b-hexadecahydropicene-4a(2H)-carboxylate