3-Deaza-2'-deoxyguanosine 4H-Imidazo(4,5-c)pyridin-4-one, 6-amino-3-(2-deoxy-beta-D-erythro-pentafuranosyl)-3,5-dihydro- 7-(2-Deoxy-beta-D-ribofuranosyl)-3-deazaguanine 83587-63-7 alpha-2'-Deoxy-3-deazaguanosine