甲基6-(氯甲酰基)-2-吡啶羧酸酯

2-N,6-N-bis(2-hydroxyphenyl)pyridine-2,6-dicarboxamide

6-氨基甲酰-2-吡啶羧酸

2-N,6-N-bis(6-methylpyridin-2-yl)pyridine-2,6-dicarboxamide

2-N,6-N-dimethylpyridine-2,6-dicarboxamide