5-氯烟酰氯

2,3-二氯吡啶-5-羰酰氯

(R,S)-N-乙基降烟碱/(R,S)-3-(N-乙基吡咯烷-2-基)吡啶

螺哌啶-4,3’-3H吡咯并[2,3-b]吡啶-2’(1’H)-酮

4,4-dimethyl-2-(4-phenyl-4H-pyridin-3-ylidene)-1,3-oxazolidine