5-氧代-1-苯基吡咯烷-3-羧酸甲酯

methyl 3-carbonochloridoylbut-3-enoate

5,8-dimethoxy-4-oxo-2,3-dihydro-1H-naphthalene-2-carboxylic acid

2-[2-(2,5-dimethoxyphenyl)-2-oxoethyl]acrylic acid

1-(2-羟基苯基)-5-氧代吡咯烷-3-羧酸