2-氧代-2,5,6,7-四氢-1H-环戊二烯并[b]吡啶-3-甲腈

3-氰基-6-甲基-2-吡啶酮

6-tert-butyl-2-oxo-1H-pyridine-3-carbonitrile

草酰胺

6-异丙基-2-氧代-1,2-二氢-3-吡啶甲腈