5'-S-acetyl-2',3'-O-isopropylidene-6-methyl-5'-thiouridine 、 N
6-benzoyl-8-(chloromethyl)-5'-O-[(dimethyl)(1,1,2-trimethylpropyl)silyl]-2',3'-O-isopropylideneadenosine 在
potassium carbonate 作用下,
以
甲醇 为溶剂,
以78%的产率得到2',3'-O-isopropylidene-5'-O-[dimethyl(1,1,2-trimethylpropyl)silyl]adenosine-8-methyl-(8(1)->5'-S)-2',3'-O-isopropylidene-6-methyl-5'-thiouridine