(-)-(2R,5S)-5-Iodo-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]uracil 145986-17-0 2,4(1H,3H)-Pyrimidinedione, 1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-5-iodo-, (2R-cis)- AIDS-004778 AIDS004778 Oxathiolan 5IU-.b.