New Bis-Pyrazolones as Potential Leads for ROS Inhibition; Environment Friendly Green Synthesis, Structural Characterization, and In Vitro Studies
作者:Sahar Yousuf、Khalid M. Khan、Uzma Salar、Almas Jabeen、Shakil Ahmed、Munira T. Muhammad、Aisha Faheem、Shahnaz Perveen
DOI:10.2174/1573406414666180112122001
日期:2018.7.6
significant antioxidant agents and many marketed and clinically prescribed NSAIDs have pyrazolone ring as main scaffold. Method: Keeping in consideration the antioxidant potential of pyrazolone scaffold, new bispyrazolones 3-30 were synthesized by a green and enviroment friendly reaction route, in which two equivalents of 1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-ol were treated with one equivalent of benzaldehyde
背景:吡唑啉酮已被确认为重要的抗氧化剂,许多市售和临床处方的非甾体抗炎药均以吡唑啉酮环为主要骨架。 方法:考虑吡唑啉酮支架的抗氧化潜力,通过绿色和环境友好的反应路线合成了新的双吡唑啉酮3-30,其中两个当量的1-(4-氯苯基)-3-甲基-1H-吡唑-5在没有任何催化剂的情况下,用一当量的苯甲醛衍生物处理α-ol。通过1 H-NMR和FAB分析对所有化合物进行结构表征。还记录了所选化合物的13 C-NMR。所有化合物均提供令人满意的元素分析,并与计算值高度吻合。 结果:使用鲁米诺增强化学发光技术,评价了合成的双吡唑啉酮3-30对酵母聚糖刺激的全血吞噬细胞的氧化爆发抑制作用。与标准布洛芬相比(IC50 = 54.2±9.2μM),所有分子均表现出在IC50 = 1.2±0.1-48.8±3.9 µM范围内的有效ROS抑制活性。活性化合物的纯度通过HPLC检查。 结论:本研究已经确定了许多非酸性铅分子,以用于ROS抑制剂的未来研究。