2'-α-(tert-butyldimethylsiloxymethyl)-3',5'-di-O-(4-chlorobenzyl)-2'-deoxycytidine

3',5'-di-O-(4-chlorobenzyl)-2'-deoxy-2'-α-iodomethyluridine

methyl 2-α-acetoxymethyl-2-deoxy-α-D-ribofuranoside

2'-α-(benzoyloxymethyl)-3',5'-di-O-(benzoyl)-2'-deoxy-N4-benzoylcytidine

2'-α-acetoxymethyl-3',5'-di-O-(4-chlorobenzyl)-2'-deoxyuridine