1-(环丙基羰基)-4-哌啶酮

4-对甲氧苯基哌啶

2-(5-异恶唑基)苯酚

N-苯甲氧基甲酰基-1,2,5,6-四氢吡啶

1-(4-三氟甲基苯基)哌啶-4-醇