1	6MK	(2e)-4-[N'-(4-benzyl-pyridine-3-carbonyl)-hydrazino]-4-oxo-but-2-enoic acid	1.000
2	640	(2e)-4-{N'-[4-(4-tert-butyl-benzyl)-pyridine-3-carbonyl]-hydrazino}-4-oxo-but-2-enoic acid	0.857
3	DGR	(E)-4-(2-nicotinoylhydrazinyl)-4-oxobut-2-enoic acid	0.708