Abd El-Lateef Hany M, Abdelhamid Antar A, Khalaf Mai M, Gouda Mohamed, Elkanzi Nadia A A, El-Shamy Hemdan, Ali Ali M
Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia.
Department of Chemistry, Faculty of Science, Sohag University, Sohag 82524, Egypt.
ACS Omega. 2023 Mar 16;8(12):11326-11334. doi: 10.1021/acsomega.3c00066. eCollection 2023 Mar 28.
A functional and environmentally green procedure for the design of novel pyridine - and - derivatives through two pathways is presented. The first pathway is via a one-pot, four-component reaction of -formylphenyl-4-toluenesulfonate (), ethyl cyanoacetate (), acetophenone derivatives or acetyl derivatives -, and ammonium acetate () under microwave irradiation in ethanol. The advantages of this method are an excellent yield (82%-94%), pure products, a short reaction time (2-7 min), and low-cost processing. The second pathway was obtained by the traditional method with treatment of the same mixture under refluxing in ethanol, which afforded the same products, - and -, in less yield (71%-88%) and over a longer reaction time (6-9 h). The constructions of the novel compounds were articulated via spectral and elemental analysis. Overall, the compounds have been designed, synthesized, and studied for their in vitro anti-inflammatory activity using diclofenac as a reference drug (5 mg/kg). The most potent four compounds, , , , and , showed promising anti-inflammatory activity.
本文介绍了一种通过两条途径设计新型吡啶及其衍生物的功能化且环境友好的方法。第一条途径是在乙醇中微波辐射下,使对甲苯磺酰基苯甲醛()、氰基乙酸乙酯()、苯乙酮衍生物或乙酰衍生物 - 与乙酸铵()进行一锅四组分反应。该方法的优点是产率极高(82% - 94%)、产物纯净、反应时间短(2 - 7分钟)且成本低廉。第二条途径是通过传统方法,在乙醇中回流处理相同的混合物,得到相同的产物 - 和 - ,但产率较低(71% - 88%)且反应时间更长(6 - 9小时)。通过光谱和元素分析阐明了新型化合物的结构。总体而言,已设计、合成并以双氯芬酸作为参考药物(5毫克/千克)研究了这些化合物的体外抗炎活性。四种最有效的化合物,,,和,显示出有前景的抗炎活性。