3-(5-hydroxy-2-nitrophenyl)prop-2-enoic acid

2-(乙酰氧基甲基)-4-(苄氧基)丁基乙酸酯

2-乙酰氨基-2-乙基丁酸

2-benzylidene-5-methylcyclopentan-1-one

1-乙酰基-4-氧代-3-哌啶羧酸甲酯