... REFERENCES. 1. Kotovskaya , SK ; Charushin , VN ; Perova , NM ; Kodess , MI ; Chupakhin , ON Intramolecular nucleophilic substitution of hydrogen in (quinoxalinyl-2)aminovinyl derivatives as a new approach to pyrrolo- and indolo[2,3-b]quinoxalines . Synth. Commun. ...