(-)-(2S,5S)-5-Bromo-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]cystosine 149819-53-4 2(1H)-Pyrimidinone, 4-amino-5-bromo-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-, (2S-trans)- AIDS-005685 AIDS005685 Oxathiolan, 5BrC-(-).a.