Brønsted Acid‐Catalyzed Direct C(
<i>sp</i>
<sup>2</sup>
)−H Heteroarylation Enabling the Synthesis of Structurally Diverse Biaryl Derivatives
作者:Shuo Yuan、Bin Yu、Hong‐Min Liu
DOI:10.1002/adsc.201801226
日期:2019.1.11
that enables the synthesis of biaryl fragments (70 examples) in moderate to excellent yields (up to 99% yield), which was also performed at a gram scale and successfully applied to the privileged quinazoline scaffolds of the first‐generation epidermal growth factor receptor (EGFR) inhibitors Gefitinib and Erlotinib, offering rapid access to a series of quinazoline‐based biaryl compounds. Additionally
联芳基支架是存在于许多天然产物和药物分子中的一类重要的结构框架。由于联芳基支架的有趣的结构特征和广泛的生物学特性,人们一直在寻求有效地构建联芳基支架的过渡金属催化方法。在这里,我们描述了布朗斯台德酸催化的直接C(sp 2)-H杂芳基化反应,可以中等至极好的收率(高达99%的收率)合成联芳基片段(70个例子),该操作也以克为单位进行,并成功应用于第一代表皮的特权喹唑啉支架上生长因子受体(EGFR)抑制剂吉非替尼和厄洛替尼,可快速使用一系列基于喹唑啉的联芳基化合物。此外,基于化合物3b进行了后期分散,生成了结构多样且复杂的联芳基化合物的库。