2',3'-di-O-acetyl-5'-(bis[(benzyloxyphosphorylmethyl)benzyloxyphosphorylmethyl]methyloxyphosphoryl)cytidine 4-N-[O,O-bis(2-cyanoethyl)phosphoramidate]                                                                                                                                                              在
                                                                                                                                                                                 
三甲基溴硅烷   、                                                                                                  
ammonium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷   、                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 44.0h,
                                                                                                                生成                                                 5'-O-{[(dihydroxy-phosphorylmethyl)hydroxyphosphorylmethyl]hydroxyphosphoryl}cytidine tetrasodium salt   、                                                                                             5'-(bis[(dihydroxyphosphorylmethyl)hydroxyphosphorylmethyl]hydroxyphosphoryl)cytidine 4-N-phosphoramidic acid hexasodium salt