1-(3,4-Dichlorophenyl)-3-phenyl-1,3-dihydro-2H-imidazo[4,5-b]quinoxalin-2-one AIDS-129743 AIDS129743 NSC363993 {2H-Imidazo[4,5-b]quinoxalin-2-one,} 1-(3,4-dichlorophenyl)-1, 3-dihydro-3-phenyl-