2'-Deoxy-7-.beta.-D-erythro-pentofuranosyl-3-deazaguanine 4H-Imidazo[4,5-c]pyridin-4-one, 6-amino-3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-3,5-dihydro- 7-.beta.-D-dRib-3-deaza G 83587-63-7 AIDS-001823 AIDS001823