α-Oxothymidine

2'-deoxy-5-forMyluridine

5-formyl-2'-deoxyuridine

1-(2-Deoxy-β-D-ribofuranosyl)-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinecarbaldehyde

1-((2R,4S,5R)-4-Hydroxy-5-(hydroxyMethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyriMidine-5-carbaldehyde