6-benzyloxy-2-methyl-3,4'-bipyridine

6-methyl-5-pyridin-4-yl-3,4-dihydro-1H-pyridin-2-one

6-methoxy-2-methyl-3-pyridin-4-ylpyridine

吡啶

ethyl pyridin-1-ium-1-carboxylate,chloride