Synonyms: 2,6-Diamino-9-(3-azido-2,3-dideoxy-.alpha.-D-erythro-pentofuranosyl)purine;2,6-Diamino-9-(3-azido-2,3-dideoxy-alpha-D-erythro-pentofuranosyl)purine;9H-Purine-2,6-diamine, 9-(3-azido-2,3-dideoxy-.alpha.-D-erythro-pentofuranosyl)-;9H-Purine-2,6-diamine, 9-(3-azido-2,3-dideoxy-alpha-D-erythro-pentofuranosyl)-