3-(3-methoxy-phenoxy)-crotonic acid methyl ester

2,4-二甲氧基苯乙酮

2,2-dimethyl-5-((2,4-dimethoxyphenyl)-α-methylmethylene)-1,3-dioxane-4,6-dione

2-(diethylamino)-7-methoxy-4H-chromene-4-thione

(2-(diethylamino)-7-methoxy-4H-chromen-4-ylidene)malononitrile