ethyl 3-(3-bromo-4-methoxymethoxyphenyl)acrylate 、 硫酸 以3.9 g of ethyl 3-(3-bromo-4-hydroxyphenyl)acrylate (49%) were obtained in the form of a white powder的产率得到ethyl 3-(3-bromo-4-hydroxyphenyl)acrylate
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Bicyclic aromatic compounds and pharmaceutical/cosmetic compositions comprised thereof