Microwave-Assisted Suzuki-Miyaura and Sonogashira Coupling of 4-Chloro-2-(trifluoromethyl)pyrido[1,2-<i>e</i>
]purine Derivatives
作者:Zahira Tber、Nicolas G. Biteau、Luigi Agrofoglio、Julien Cros、Stéphane Goffinont、Bertrand Castaing、Cyril Nicolas、Vincent Roy
DOI:10.1002/ejoc.201900921
日期:2019.9.8
The convenient preparation of novel 4‐chloro‐2‐(trifluoromethyl)pyrido[1,2‐e]purines by the original reactions of imidazo[1,2‐a]pyridine‐2‐carboxamides and 2,2,2‐trifluoroacetamide is reported. The derivatives were then efficiently cross‐coupled through Suzuki–Miyaura and Sonogashira catalysis to give the related C‐4 substituted pyrido[1,2‐e]purines of biological interest in good yields.
通过咪唑并[1,2 - a ]吡啶-2-羧酰胺与2,2,2-三氟乙酰胺的原始反应,可以方便地制备新型4-氯-2-(三氟甲基)吡啶并[1,2- e ]嘌呤。报告。然后,这些衍生物通过Suzuki-Miyaura和Sonogashira催化有效地交叉偶联,从而以高收率获得具有生物学价值的相关C-4取代吡啶并[1,2- e ]嘌呤。