吡啶

ethyl 4-cyano-1-methoxymethyl-1,4-dihydro-3-pyridineglyoxylate

1-(methoxymethyl)pyridin-1-ium

1-(methoxymethyl)-1,4-dihydropyridine-4-carbonitrile

氧代(吡啶-3-基)乙酸