2,3,4-三甲基环戊-2-烯-1-酮

3,4-dimethyl-2-phenylcyclopent-2-enone

N-acetyl-N-(4-bromo-phenyl)-N'-(3-nitro-benzoyl)-hydrazine

1-(4-benzyl-phenyl)-propan-2-ol

N-乙酰-DL-蛋氨酸