methyl 2-(7-methoxy-4-methyl-2-oxo-2H-chromen-3-yl)acetate

(7-methoxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid ethyl ester

7-hydroxy-3-methoxycarbonylmethyl-4-methyl-2H-chromen-2-one

3-甲氧基苯酚

乙酰琥珀酸二乙酯