11-(2-imidazol-1-ylacetyl)-1-oxido-5H-pyrido[2,3-b][1,4]benzodiazepin-1-ium-6-one

2-chloro-N-[1-hydroxy-2-(2-hydroxyethylimino)pyridin-3-yl]benzamide

2-[(3-amino-1-hydroxypyridin-2-ylidene)amino]benzoic acid