Abstract
Recyclization of 3-aroyl-1H-pyrrolo[1,2-a]quinoxaline-1,2,4(5H)-triones by the action of benzoic acid hydrazides gave N-[2,4-dihydroxy-5-oxo-3-(3-oxo-3,4-dihydroquinoxalin-2-yl)-2-aryl-2,5-dihydro-1H-pyrrol-1-yl]benzamides whose structure was proved by X-ray analysis.
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