1-羟基苯并(a)蒽

2,10-dimethylidene-4,12-dioxadispiro[4.2.4⁸.2⁵]tetradecane-3,11-dione

4-[二(苯基甲基)氨基]苯酚

(4-氧代环己基)-乙酸甲酯

3-(1-phenylethenyl)-1,2,5-trioxaspiro[5.5]undecan-9-one