1-(2-deoxy-4-thio-3,5-di-O-toluoyl-β-D-erythro-pentofuranosyl)uracil

3',5'-di-O-benzyl-4'-thio-2'-deoxyuridine

3-Benzoyl-1-((2R,4S,5R)-4-benzyloxy-5-benzyloxymethyl-tetrahydro-thiophen-2-yl)-1H-pyrimidine-2,4-dione

1-(5-O-acetyl-2-deoxy-4-thio-β-D-erythro-pentofuranosyl)uracil

1-((4S,5R)-4-(benzyloxy)-5-((benzyloxy)methyl)tetrahydrothiophen-2-yl)pyrimidine-2,4(1H,3H)-dione