Synthesis of pyrido[2,3-b]indoles and pyrimidoindoles via Pd-catalyzed amidation and cyclization
作者:Arepalli Sateesh Kumar、P. V. Amulya Rao、Rajagopal Nagarajan
DOI:10.1039/c2ob25371b
日期:——
pharmaceutically active core structures containing a new class of 4-hydroxy-α-carbolines, dihydropyrido[2,3-b]indoles, pyrimido[4,5-b] and [5,4-b]indoles have been synthesized in good yields via Pd-catalyzed amidation and cyclizations. The keto–enol tautomerism in 4-hydroxy-α-carbolines has been investigated by DFT calculations and spectroscopic techniques. The fluorescence studies of pyrimido[4,5-b] and [5,4-b]indoles
含有新型4-羟基-α-咔啉,二氢吡啶并[2,3- b ]吲哚,嘧啶并[4,5- b ]和[5,4- b ]吲哚的生物和药物活性核心结构已于2007年合成。通过Pd催化的酰胺化和环化获得良好的收率。通过DFT计算和光谱技术研究了4-羟基-α-咔啉中的酮-烯醇互变异构现象。嘧啶基[4,5- b ]和[5,4- b ]吲哚的荧光研究以良好的量子产率进行。