for the following products
5'-O-(4, 4'-dimethoxytrityl)-N4-acetyl-2'-fluoro-2'-deoxycytidine | N-(1-((2R,3R,4R,5R)-5-((bis-(4-Methoxyphenyl)(phenyl)methoxy)methyl)-3-fluoro-4-hydroxytetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)acetamide | N4-Acetyl-2'-deoxy-2'-fluoro-5'-O-DMT-D-cytidine | N4-Acetyl-2'-deoxy-5'-O-DMT-2'-fluorocytidine and N-Acetyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluorocytidine