尿嘧啶核苷

1-[2,2'-anhydro-3'-O-benzoyl-5'-O-(tert-butyldimethylsilyl)-β-D-arabinofuranosyl]uracil

2',3'-O-sulfinyl uridine

1-(3,5-O-sulfinyl-β-D-xylofuranosyl)uracil

2'-O-tosyl-2,5'-anhydrouridine