142952-69-0 2-HOCH2-4-A-tetraHthiophene 2-Hydroxymethyl-4-(1H-adenin-9-yl)-tetrahydrothiophene AIDS-002296 AIDS002296 L-threo-Pentitol, 2-(6-amino-9H-purin-9-yl)-1,2,3,4-tetradeoxy-1,4-epithio-