4,7-二甲基-2,3-二氢-异吲哚-1-酮

2-乙基对二甲苯

2,5-二甲基-呋喃-3-羧酸乙酯

4,8-dicyano-1,2,4,8-tetramethyl-3,9-dioxatricyclo-[5.2.1.02,6]decane

ethyl 3-(2,5-dimethyl-3-furyl)-5-cyano-2,5-dimethyltetrahydrofuran-2-carboxylate