2'-deoxy-O4-ethyl-5-iodouridine

[(2R,3S,5R)-3-hydroxy-5-(5-iodo-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl benzoate

Acetic acid (2R,3S,5R)-2-acetoxymethyl-5-(4-ethoxy-5-iodo-2-oxo-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester

5'-O-benzoyl-3'-O-benzyl-2'-deoxyuridine

2'-deoxy-O4-ethyl-5-iodo-5'-O-trityluridine