3-oxobenzo[f]chromene-2-carbonitrile

2,4-二氧代-3-氮杂螺[5.5]十一烷-1,5-二甲腈

4-methyl-6-(4-methylphenyl)-2-oxo-1H-pyridine-3-carbonitrile

3-氰基-4-苯基-6-(3-溴-6-羟基苯基)-2(1H)-吡啶酮

4,6-bis(4-methoxyphenyl)-2-oxo-1H-pyridine-3-carbonitrile