3-Fluorobeiizimidazole (IV), 4, 6-difluorobenzimidazole (I-), 4, 6-difluorobenzotriazole (VI), 4, 5, 7-trifl~ iorobeiizimidazole (VII), 4-arnino-5, 7-difluorobenximidazole (XIS), and 4-amino-5, S-difluorobenzotriazole (XX) were synthesized and evaluated for cell cultiire cytotoxicity. Compounds Is', V, and XIX were also evaluated for their ability to iiihibit the Friend virus leukemia arid were fomnd to be inactive.
