BENZIMIDAZOLE CONDENSED RING-SYSTEMS .7. AN ENTRY TO SUBSTITUTED 1H,6H-2,6A,10B-TRIAZAFLUORANTHENE-1,3,6-(2H)-TRIONES AND RELATED SYSTEMS AS POSSIBLE CHEMOTHERAPEUTIC-AGENTS

The syntheses of some derivatives of three new benzimidazole condensed ring systems; namely, 1H,6H-2,6a,10b-triazafluoranthene-1,3,6(2H)-trione (3), 1H,8H,11H-12-oxa-2,3a,7b-triazabenz[e]acephenanthrylene-1,3,8,11(2H)-tetrone (4) and 1H,4H-2,5,6a,10b-tetrazafluoranthene-1,3,4,6(2H,5H)-tetrone (10) are described. Two compounds exhibited in Vitro antibacterial activity. Four compounds were screened for in vitro anti-HIV activity and three compounds were evaluated for antileukemic potency but were inactive.