2’-O-(叔-丁基二甲基硅烷基)-5’-O-三苯甲基尿苷

2'-O-(叔-丁基二甲基硅烷基)-3'-O-(苯氧基硫代羰基)-5'-O-三苯甲基尿苷

3'-O-mesyl-N4,O2',O5'-tripivaloylcytidine

2',5'-di-O-acetyl-3'-deoxycytidine

α-D-2-O-acetyl-1,3,5-tri-O-benzoylribofuranoside