(+/-) Cis-2-hydroxymethyl-5-(thymin-N-1-yl)-1,3-oxathiolane 1,3-Oxathiolane, 2,4(1H,3H)-pyrimidinedione deriv. 1,3-oxathiolane deriv. 2,4(1H,3H)-Pyrimidinedione, 1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-5-methyl-, (cis)- 5-Me SddU, 5-MeSddU AIDS-002619 AIDS002619