1-乙基哌啶-3-羧酸乙酯

ethyl 1-benzylpyridin-1-ium-3-carboxylate,bromide

3-(4-methylphenyl)-2-(2-oxo-2-pyridin-3-ylethyl)quinazolin-4-one

pyridin-3-yl(pyrrolidin-1-yl)methanone

2-(3-吡啶基)-1,3,4-恶二唑