Transition metal free Brønsted acid mediated synthesis of pyrido[1,2-a]indole scaffolds has been developed through aza-Nazarov type cyclization of readily available diaryl(2-pyridyl)methanol using formic acid for the synthesis of biologically and medicinally important pyrido[1,2-a]indole, indolo[1,2-a]quinoline and pyrimido[1,2-a]indole derivatives.
通过使用甲酸介导的过渡金属无机酸催化合成,已经开发出一种通过可获得的二芳基(2-吡啶基)甲醇进行氮杂Nazarov型环化反应,合成具有生物学和药用重要性的吡啶[1,2-a]吲哚、吲哚[1,2-a]喹啉和嘧啶[1,2-a]吲哚衍生物的方法。