3-甲基-2-丁烯酸乙酯

2-羟基-4,5-二甲氧基苯甲醛

6,7-dimethoxy-2,2-dimethyl-3,4-dihydrochromen-3-ol

2,2-Dimethyl-6-hydroxy-7-methoxy-4-chromanone

(e)-3-(3,4-二甲氧基苯基)-2-丙烯酸甲酯