1-(3-R-Isocyano-4-hydroxybutyl)thymine acyclonucleoside 131669-25-5 2,4(1H,3H)-Pyrimidinedione, 1-(4-hydroxy-3-isocyanobutyl)-5-methyl-, (R)- AIDS-001815 AIDS001815 Thymine acyclonucleoside