4,4-二甲基-2,6-二氧代哌啶-3,5-二甲腈

2-amino-5-cyano-4,4-dimethyl-6-oxo-3,5-dihydropyridine-3-carboxamide

2-(4-oxo-1,3-benzothiazin-2-yl)acetamide

2-cyano-5-oxo-3,5-diphenylpentanamide

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