5,7-Diacetyl-6-(6,7-dimethoxy-5-methoxycarbonyl-4-oxo-4H-chromen-3-yl)-2,3-dimethoxy-9-oxo-9H-xanthene-1-carboxylic acid methyl ester

5,6-dehydropolivione

3-溴-4,5-二甲氧基苯甲醛

3-(3-bromo-4,5-dimethoxyphenoxy)propanenitrile

5-bromo-6,7-dimethoxychroman-4-one