Research on Nitrogen Containing Heterocyclic Compounds; XIV. Derivatives of 5H-Pyrrolo[1,2-b][1,2,5]benzotriazepine, a Novel Tricyclic Ring System, by Intramolecular Cyclization of N-Aryl-1H-pyrrol-1-amines - Stefancich, Giorgio; Artico, Marino; Corelli, Federico; Massa, Silvio (Synthesis, 1983)