1-((2R,3R,4R,5R)-5-acetyl-4-(benzyloxy)-5-((benzyloxy)methyl)-3-fluorotetrahydrofuran-2-yl)-3-(4-methoxybenzyl)pyrimidine-2,4(1H,3H)-dione

1-((2R,3R,4R,5R)-4-(benzyloxy)-5-((benzyloxy)methyl)-3-fluoro-5-((R)-1-fluoroethyl)tetrahydrofuran-2-yl)-3-(4-methoxybenzyl)pyrimidine-2,4(1H,3H)-dione

1-((2R,3R,4R,5R)-4-(benzyloxy)-5-((benzyloxy)methyl)-3-fluoro-5-((R)-1-fluoroethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione

4-amino-1-((2R,3R,4R,5R)-4-(benzyloxy)-5-((benzyloxy)methyl)-3-fluoro-5-((R)-1-fluoroethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one

((2R,3R,4R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-4-fluoro-2-(fluoromethyl)-3-hydroxytetrahydrofuran-2-yl)methyl tetrahydrogen triphosphate