[EN] NUCLEOSIDE ANALOGS FOR ANTIVIRAL TREATMENT<br/>[FR] ANALOGUES NUCLÉOSIDIQUES POUR TRAITEMENT ANTIVIRAL
申请人:GILEAD SCIENCES INC
公开号:WO2008100447A2
公开(公告)日:2008-08-21
[EN] The invention provides unsaturated phosphonates of Formula I or a tautomer or pharmaceutically accepatble salt thereof, as described herein, as well as pharmaceutical compositions comprising the compounds, and therapeutic methods comprising administering the compounds. The compounds have anti-viral properties and are useful for treating viral infections (e.g. HCV) in animals (e.g. humans). [FR] La présente invention concerne des phosphonates insaturés de formule (I) ou un tautomère ou un sel pharmaceutiquement acceptable de ceux-ci, ainsi que des compositions pharmaceutiques comportant les composés, et des procédés thérapeutiques comprenant l'administration des composés. Les composés présente des propriétés antivirales et sont utiles pour traiter des infections (par exemple, le VHC) chez des animaux (par exemple, des humains).
Amberlyst-15 catalyzed synthesis of alkyl/aryl/heterocyclic phosphonates
A novel and efficient procedure for the synthesis of alkyl phosphonates through one pot condensation of alkyl halide and tri alkyl/aryl phosphite in the presence of amberlyst-15 as catalyst under solvent free conditions was applied. It demonstrated several advantages such as good yields of products, simple operation, convenient separation and inexpensive catalyst.