4-ethynyl-1-methylpiperidine

N-[(E)-ethylideneamino]-N-pyridin-4-ylpyridine-4-carboxamide

4-nitro-N-[(Z)-1-pyridin-4-ylethylideneamino]aniline

4-(1-苯基乙基)吡啶

4-(1-pyridin-4-ylethenyl)morpholine