HASSAN, MOHAMED EZELDIN, CAN. J. CHEM., 69,(1991) N, C. 198-200
作者:HASSAN, MOHAMED EZELDIN
DOI:——
日期:——
US5215971A
申请人:——
公开号:US5215971A
公开(公告)日:1993-06-01
A new palladium-catalyzed coupling reaction of vinylic and allylic triflates with pyrimidine nucleosides
作者:Mohamed Ezeldin Hassan
DOI:10.1139/v91-031
日期:1991.2.1
Vinylic trifluoromethane sulfonates (triflates) form palladium intermediates that react with pyrimidine nucleosides to produce C-5 alkyl substituted nucleosides after hydrogenation of the vinyliccoupling products with hydrogen and Pd/C in methanol. The reaction, which is run under mild conditions, appears to be a general one since both mono- and disubstituted vinylictriflates, as well as the cyclic