Palladium-Catalyzed Alkynylation (Sonogashira Coupling) at C-5 of the Uracil Moiety in Modified Unsaturated Pyranosyl Nucleosides
作者:Denis Sinou、Rajendra Srivastava、Francisco Mendonça、Janaína dos Anjos、Sebastiao de Melo
DOI:10.1055/s-2007-965976
日期:2007.6
Various unsaturated 4-(5-substituted-uracil-1-yl)glycopyranosides were synthesized in good yields by a palladium-catalyzed cross-coupling reaction of ethyl 6- O-( TERT-butyldimethylsilyl)-2,3,4-trideoxy-4-[5-iodo-2,4-dioxo-3,4-dihydropyrimidin-1(2 H)-yl]-α- D- ERYTHRO-hex-2-enopyranoside with a range of acetylenic derivatives.
以钯催化的 6-O-(叔丁基二甲基甲硅烷基)-2,3,4-三氧- 4-[5-iodo-2,4-dioxo-3,4-dihydropyrimidin-1(2 H)-yl]-α-D-ERYTHRO-hex-2-enopyranoside 与一系列炔属衍生物。