4-[(6-chloro-1,3-dihydro-1,3-diphenyl-2H-imidazo[4,5-b]quinoxalin-2-ylidene)ethylidene]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one

4-[2-[(6-Chloro-2,3-dihydro-1,3-diphenyl-1H-imidazo[4,5-b]quinoxalin)-2-ylidene]ethylidene]-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one