5,6-二甲氧基-1-茚酮

3,4-二甲氧基苯丙酸

3,4-dimethoxyphenylpropionic acid chloride

methyl 1-hydroxy-5,6-dimethoxy-2,3-dihydro-1H-indene-2-carboxylate

methyl 5,6-dimethoxy-3-oxo-1,2-dihydroindene-2-carboxylate