α-Acetyl-β-(4-methoxyphenyl)acrylic acid ethyl ester

2-(4-Methoxybenzylidene)acetoacetic acid ethyl ester

2-(4-Methoxybenzylidene)-3-oxobutyric acid ethyl ester

Butanoic acid, 2-[(4-Methoxyphenyl)Methylene]-3-oxo-, ethyl ester