Microwave-assisted Solvent-free Synthesis and in Vitro Antibacterial Screening of Quinoxalines and Pyrido[2, 3b]pyrazines
作者:J. Jesús Morales-Castellanos、Karina Ramírez-Hernández、Nancy S. Gómez-Flores、Oscar R. Rodas-Suárez、Javier Peralta-Cruz
DOI:10.3390/molecules17055164
日期:——
We report herein the microwave assisted synthesis, without solvents and catalysts, of 6-substituted quinoxalines and 7-substituted pyrido[2,3b]pyrazines. The compounds were obtained in good yields and short reaction times using the mentioned procedure and two new structures are reported. A complete 1H- and 13C-NMR assignment was performed using 1D and 2D-NMR. Additionally, an in vitro screening was
我们在此报告了 6-取代喹喔啉和 7-取代吡啶并 [2,3b] 吡嗪的微波辅助合成,无需溶剂和催化剂。使用上述程序以良好的收率和较短的反应时间获得了化合物,并报告了两种新结构。使用 1D 和 2D-NMR 进行了完整的 1H-和 13C-NMR 分配。此外,使用阿莫西林作为阳性参照对革兰氏阳性菌和革兰氏阴性菌进行了体外筛选。带有吡啶基的化合物往往具有较高的抗菌活性,但喹喔啉衍生物对枯草芽孢杆菌和奇异变形杆菌的抗菌活性最好。