Heptanedioic acid benzyl ester (2R,3S,5R)-5-(2,4-dioxo-5-thiophen-2-yl-3,4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethyl ester
Pentanedioic acid benzyl ester (2R,3S,5R)-5-(2,4-dioxo-5-thiophen-2-yl-3,4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethyl ester
Hexanedioic acid benzyl ester (2R,3S,5R)-5-(2,4-dioxo-5-thiophen-2-yl-3,4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethyl ester
5-(5-bromothien-2-yl)-2'-deoxyuridine
5-(5-chlorothien-2-yl)-2'-deoxyuridine