ChemInform Abstract: Pyrrolo[2,3-b]quinoxalines as Inhibitors of Firefly Luciferase: Their Cu-Mediated Synthesis and Evaluation as False Positives in a Reporter Gene Assay

2-Substituted pyrrolo[2,3-b]quinoxalines (V) are prepared in a single reaction from 3-alkynyl-2-chloroquinoxalines (III) using methanesulfonamide as ammonia surrogate.