8-allyl-6-N-bis(t-butoxycarbonyl)-5'-O-t-butyldimethylsilyl-2',3'-O-isopropylideneadenosine 、
在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以43%的产率得到2-(trimethylsilyl)ethyl 6-(6-(bis(tert-butoxycarbonyl)amino)-9-((3aR,4R,6R,6aR)-6-(((tert-butyldimethylsilyl)oxy)methyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-9H-purin-8-yl)-2-((tert-butoxycarbonyl)amino)hex-4-enoate