1-苯甲基-2-哌啶酮

3-(3-氧代丁基)-2-哌啶酮

3-[2-(1,8-萘啶-2-基)乙基]-2-哌啶酮

3,3-二甲基-2-哌啶酮

1-prop-2-enylpiperidin-2-one