(S,S)-2,6-双(4-异丙基-2-恶唑啉-2-基)吡啶 、
4-N,5'-O-bis(4,4'-dimethoxytrityl)cytidine 、
异氰酸苯酯 、
5'-O-[bis(4-methoxyphenyl)phenylmethyl]-N2-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-phenylcarbamoylcytidine 在
Copper(II) trifluoromethanesulfonate 作用下,
以
1,4-二氧六环 为溶剂,
反应 5.25h,
以5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N4-[bis(4-methoxy-phenyl)phenylmethyl]-3′-O-phenylcarbamoylcytidine were produced at the ratio of 85:15的产率得到5'-O-[bis(4-methoxyphenyl)phenylmethyl]-N2-[bis(4-methoxyphenyl)phenylmethyl]-3'-O-phenylcarbamoylcytidine