for the following products
(2R,3S,4S,5R)-4-(acetyloxy)-2-(4-amino-5-fluoro-2-oxo-1,2-dihydropyrimidin-1-yl)-5-methyloxolan-3-yl acetate | 2',3'-di-O-Acetyl-5'-deoxy-5-fluoro-D-cytidine | 5'-Deoxy-2',3'-di-O-acetyl-5-fluorocytidine and 2',3'-di-O-Acetyl-5'-deoxy-5-fluorocytidine
