1,2,4-Triazine-3,5(2H,4H)-dione, 2-[2,5-dihydro-5-(hydroxymethyl)-2-furanyl]-6-methyl-, (2R-cis)- 129470-80-0 2',3'-Didehydro-3'-deoxy-6-azathymidine 6-Aza-D4T AIDS-001331 AIDS001331