NHC-catalyzed green synthesis of functionalized chromones: DFT mechanistic insights and <i>in vitro</i> activities in cancer cells
作者:Nithya Murugesh、Jebiti Haribabu、Krishnamoorthy Arumugam、Chandrasekar Balachandran、Rajagopal Swaathy、Shin Aoki、Anandaram Sreekanth、Ramasamy Karvembu、Seenuvasan Vedachalam
DOI:10.1039/c9nj02650a
日期:——
functionalization in one pot to obtain a library of compounds for anticancer activity. Among the investigated compounds, 2c (SVM-2), 4c (SVM-4) and 2d (SVM-9) show IC50 values of 5.18, 4.89 and 27.3 μM respectively in HeLa S3 cancer cells. Compound 5c (SVM-5) shows IC50 values of 13.3 and 14.2 μM in A549 and HeLa S3 cancer cells, respectively. Compounds 2c (SVM-2) and 4c (SVM-4) produce morphological changes
报道了在微波条件下,N-杂环卡宾(NHC)催化相应水杨醛衍生的腈和活化炔烃的分子内加氢酰化反应的高效合成,合成了3-氨基色酮和3-烷基色酮。该方案具有环境友好,产率高,反应时间短和使用市售噻唑鎓催化剂方便操作的优点。使用密度泛函理论(DFT)研究了NHC催化的腈分子内加氢酰化反应的化学反应性的起源。结果表明3-氨基色酮通过称为Breslow中间体(INT2的酰基阴离子中间体)形成)通过TS2。布雷斯洛中间体(INT2)与腈碳形成碳-碳键,从而通过TS3生成亚胺中间体INT3,该中间体进一步经历亚胺至胺的互变异构现象,得到最终产物。将3-氨基色酮的某些衍生物在一个罐中进行胺官能化,以获得具有抗癌活性的化合物库。在研究的化合物中,HeLa S3癌细胞中2c(SVM-2),4c(SVM-4)和2d(SVM-9)的IC 50值分别为5.18、4.89和27.3μM。复合物5c(SVM-5)显示A549和HeLa