methyl 4-(4-aminophenyl)-4-oxo-3-(piperidin-1-ylmethyl)butanoate

3-(4-acetamidobenzoyl)-4-(N-piperidinyl)butanoic acid

6-(4-acetamidophenyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one

N-[4-(2-氯丙酰基)苯基]乙酰胺

methyl 4-(4-acetamidophenyl)-3-methyl-4-oxobutanoate