3-[4-(4-oxo-1,4-dihydropyridin-1-yl)benzoyl]butanoic acid

吡喃-4-酮

6-(4-氨基苯基)-4,5-二氢-5-甲基-3(2H)-哒嗪酮

3-(4-乙酰基氨基苯甲酰基)丙酸

methyl 3-(4-acetamidobenzoyl)but-3-enoate