annulation of 1-amino-1H-pyrrole-2-amides with various substituted benzaldehydes, heteroaryl aldehydes, alkyl aldehydes or even acetals, promoted by cupric chloride, to synthesize 2-substituted pyrrolo[2,1-f][1,2,4]triazin-4(3H)-ones is reported. This approach provides a useful method for constructing the privileged structure in medicinal chemistry. Electron-donating groups on both partners could accelerate
一种有效的串联方法,用
氯化
铜促进1-
氨基-1 H-
吡咯-2-酰胺与各种取代的
苯甲醛,杂芳基醛,烷基醛甚至
乙缩醛的环合,合成2-取代的
吡咯并[2,1-报告了f ] [1,2,4] triazin-4(3 H)-ones。该方法为构建药物
化学中的特权结构提供了一种有用的方法。两个伙伴上的给电子基团可以加速反应。