1-<3'-C-cyano-2',3'-dideoxy-5'-O-(t-butyldimethylsilyl)-β-D-threo-pentofuranosyl> thymine

1-(3'-cyano-2',3'-dideoxy-5'-O-trityl-β-D-threo-pentofuranosyl)thymine

1-(2,5-bis-O-(tert-butyldimethylsilyl)-β-D-erythro-pentofuran-3-ulosyl)thymine

1-(2',5'-di-O-(t-butyldimethylsilyl)-3'-C-cyano-3'-deoxy-β-D-xylo-pentoifuranosyl)thymine

5-甲基尿甙