4-氰基-4-苯基哌嗪

4-苯基-1,2,3,6-四氢吡啶

4-phenylpiperidine-2,6-dione

Piperidine, 1-[(4-methylphenyl)sulfonyl]-4-phenyl-

1-benzyl-4-phenylpiperidine-2,6-dione