1-Morpholinomethyl-3-acetyl-2-oxoimidazo(4,5-b)pyridine oxalate 2H-Imidazo(4,5-b)pyridin-2-one, 1,3-dihydro-3-acetyl-1-(4-morpholinylmethyl)-, ethanedioate (1:1) 85930-05-8