(1'S,2'S,3'R)-1-{2'-hydroxymethyl-3'-[bis(p-methoxyphenyl)phenylmethyloxymethyl]cyclobutyl}cytosine 在
N,N-二异丙基乙胺 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 13.0h,
生成 (1'S,2'S,3'R)-1-{2'-hydroxymethyl-3'-[bis(p-methoxyphenyl)phenylmethyloxymethyl]cyclobutyl}-N
4-(N,N-dimethylaminomethylene)cytosine 5'-O-(2-cyanoethyl N,N-diisopropylphosphoramidite)