Methyl 3-[4,5-dimethoxy-2-(2-methoxy-2-oxoethyl)phenyl]propanoate

tert-butyl((4-(3,4-dimethoxyphenyl)but-1-en-2-yl)oxy)dimethylsilane

ethene

(3,4-二甲氧基苯基)乙酰氯