2-Deoxy-7-.alpha.-D-erythro-pentofuranosyl-3-deazaguanine 4H-Imidazo[4,5-c]pyridin-4-one, 6-amino-3-(2-deoxy-.alpha.-D-erythro-pentofuranosyl)-3,5-dihydro- 7-.alpha.-D-dRib-3-deaza G 83587-64-8 AIDS-001822 AIDS001822