142941-59-1 2-HOCH2-4-T-tetraHthiophene 2-Hydroxymethyl-4-(1H-thymin-1-yl)-tetrahydrothiophene AIDS-002297 AIDS002297 L-threo-Pentitol, 1,2,3,4-tetradeoxy-2-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-1,4-epithio-