Analogs of 8-azaguanosine

Abstract
Two routes for the synthesis of 6-substituted 8-azaguanosine analogs are described. Several of the compounds were tested for antineoplastic activity in [human oral carcinoma] HEp-2 cell culture and L1210 mouse leukemia systems. Only 1 compound showed high cytotoxicity and borderline L1210 activity, resulting from enzymatic conversion to 8-azaguanosine.