1-(5,6-Di-O-acetyl-2,3-dideoxy-3-phthalimido-.alpha.-D-arabino-hexafuranosyl)thymine 133488-19-4 2,4(1H,3H)-Pyrimidinedione, 1-[5,6-di-O-acetyl-2,3-dideoxy-3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-.alpha.-D-arabino-hexofuranosyl]-5-methyl- AIDS-002519 AIDS002519 DiOAcPhthN-D-arab-ddT deriv.