(-)-(2S,5S)-1-[2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]cytosine 136846-20-3 2(1H)-Pyrimidinone, 4-amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-, (2S-trans)- AIDS-005665 AIDS005665 OxathiolanC-(-).a.