胸苷

5-羟甲基尿嘧啶

1-((5S,6S)-6-hydroxy-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methyl-2,4-dioxohexahydropyrimidin-5-yl)-2,2,6,6-tetramethyl-4-oxopiperidine 1-oxide

3',5'-bis-O-(tert-butyldiphenylsilyl)-5-phenylselenylmethyl-2'-deoxyuridine

3',5'-bis-O-(tert-butyldiphenylsilyl)-thymidine