1-(1,4-Anhydro-2,3,6,8-tetradeoxy-.beta.-D-erythro-oct-7-ulosyl)thymine 131177-29-2 2,4(1H,3H)-Pyrimidinedione, 5-methyl-1-[tetrahydro-5-(1-hydroxy-3-oxobutyl)-2-furanyl]-, [2R-[2a,5a(R*)]]- 5C'-CH3COCH2-dT AIDS-001921 AIDS001921