Zur synthese von difluormethylethern verschieden substituierter pyrimidinnucleoside durch reaktion mit difluorcarben
作者:C.-D Pein、D Cech
DOI:10.1016/s0040-4039(00)94984-0
日期:1985.1
The reaction of CF2 with different substituted persilylated pyrimidine nucleosides either in the ribo-, 2′-deoxyrigo- or in the arabino-series gave the corresponding 4-0-difluoromethylethers. Optimum yields were obtained using Hg(CF3)2 as source of CF2.
Synthesis and biological activities of 4-O-(difluoromethyl)-5-substituted-uracil nucleoside analogs
作者:Juergen Reefschlaeger、Claus Dietmar Pein、Dieter Cech
DOI:10.1021/jm00397a022
日期:1988.2
cell cultures. The introduction of the 4-substituent led to a strong reduction of antiviral activity for dUrd but not for araU analogues. Three of the 4,5-disubstituted uracil nucleoside derivatives, 4-O-(difluoromethyl)-5-bromo-araU (5c),-5-methyl-araU (5e), and -(E)-5-(2-bromovinyl)-araU (5g), displayed a high and selective inhibitory effect against HSV-1, but only 5e was effective against both HSV-1