2'-O-thexyldimethylsilyl-5'-O-trityluridine

3'-O-phenoxythiocarbonyl-2'-O-thexyldimethylsilyl-5'-O-trityluridine

2',5'-di-O-acetyl-3'-deoxyuridine

2',5'-bis-O-(tert-butyldimethylsilyl)uridine

1,2-di-O-acetyl-3-deoxy-5-O-(4-methylbenzoyl)-D-α,β-xylofuranose