ethyl 6-methoxy-2-methyl-4-oxo-4H-benzopyran-3-carboxylate

1-(2-hydroxy-5-methoxy-phenyl)-butane-1,3-dione

2-羟基-5-甲氧基苯乙酮

乙酸乙酯

2-acetoxy-5-methoxybenzoyl chloride