1-<5-(O-t-butyldiphenylsilyl)-2,3-dideoxy-2-phenylthio-β-D-glycero-pent-2-enofuranosyl>uracil

1-((2R,3R,5S)-5-(((tert-butyldiphenylsilyl)oxy)methyl)-3-((S)-phenylsulfinyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione

1-<5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-2-phenylthio-β-D-erythro-pentofuranosyl>uracil

5'-TBDMS-2,3'-ANHYDRO-2'-DEOXYURIDINE

1-(5-O-(acetoxyisobutyryl)-3-O-acetyl-2-bromo-2-deoxyribosyl)uracil