N-[4-[(pyridine-3-carbonylamino)sulfamoyl]phenyl]acetamide

3-异氰酸吡啶

N'-(2H-1,4-benzoxazin-3-yl)pyridine-3-carbohydrazide

2,5-双(3-吡啶)-1,3,4-噁二唑

3,5-二甲基-1-烟酰-1H-吡唑