Synthesis of complex ethynyladenosines using organic triflic enolates in palladium-catalyzed reactions: Potential agonists for the adenosine A2 receptor
作者:Steven A. Adah、Vasu Nair
DOI:10.1016/s0040-4020(97)00326-8
日期:1997.5
Many high affinity adenosine A2 receptor agonists contain substituents at position 2 of the purine base. In the search for new methodology to develop C-2 substituted adenosine analogues, we have applied organic triflates in palladium-catalyzed cross-couplings that resulted in new 2-cycloalkylated ethynyladenosines. The organic triflates are derived from commercially available ketones and, when used
许多高亲和力的腺苷A 2受体激动剂在嘌呤碱基的2位含有取代基。在寻找开发C-2取代的腺苷类似物的新方法时,我们在钯催化的交叉偶联反应中应用了有机三氟甲磺酸盐,从而产生了新的2-环烷基化的乙基腺苷。有机三氟甲磺酸酯衍生自可商购的酮,当用于交叉偶联时,通常可产生收率良好的清洁反应。这些是在修饰的核苷合成中钯催化的交叉偶联反应中利用有机三氟甲磺酸酯的第一个例子。