(+)-(2R,5R)-5-Bromo-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]uracil 145986-16-9 2,4(1H,3H)-Pyrimidinedione, 5-bromo-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-, (2R-trans)- AIDS-004777 AIDS004777 Oxathiolan 5BrU-.a.