3',5'-di-O-(tetrahydropyran-2-yl)-2,2'-O-cyclouridine

1-(2-hydroxy-3,5-di(O-tetrahydropyran-2-yl)β-D-arabinofuranosyl)uracil

4-Tetrazolo-3',5'-di-O-benzoyl-2'-fluor-1(2H)-pyrimidinon

9-(2-deoxy-2-fluoro-3,5-di-O-(tetrahydropyran-2-yl)-β-D-ribofuranosyl)uracil

安西他滨