1-甲基-4-苯基-4-羟基哌啶

4-苯基吡啶

4-苯基-1,2,3,6-四氢吡啶

3-(methylamino)-1-phenylpropan-1-one

1-methyl-4-phenyl-3,6-dihydro-2H-pyridine-6-carbonitrile