4-fluoro-β,β-difluorostyrene
5-(2,2-difluoro-2-methoxyethyl)-6-aza-2'-deoxyuridine
1-(2'-deoxy-3',5'-di-O-p-toluoyl-β-D-erythro-pentofuranosyl)-5-(2,2-difluoroethenyl)-6-azauracil
Acetic acid (1R,3R)-3-benzyl-2,2-difluoro-cyclopropyl ester
1-acetoxy(methyl)-2,2-difluoro-3-phenylcyclopropane