1,2,4-Triazine-3,5(2H,4H)-dione, 2-(3-azido-2,3-dideoxy-beta-D-erythro-pentofuranosyl)-6-methyl- 111496-01-6 3'-Azido-3'-deoxy-6-azathymidine 3'-N3-6-Aza-dT AIDS-000937 AIDS000937