Derivatives of 4,5-dihydro (1H) pyrazoles as possible MAO-A inhibitors in depression and anxiety disorders: synthesis, biological evaluation and molecular modeling studies
作者:Avinash C. Tripathi、Savita Upadhyay、Sarvesh Paliwal、Shailendra K. Saraf
DOI:10.1007/s00044-018-2167-z
日期:2018.5
interactions of these compounds with the amino acid residues Ala68, Tyr69, Phe208, Tyr407 and Tyr444. Moreover, synthesized derivatives showed encouraging pharmacokinetic (ADME) and toxicological (neurotoxicity, carcinogenicity, mutagenicity, reproductive toxicity, irritancy and acute toxicity) parameters as predicted by computational programs. Some of these toxicity studies were further examined in wet
用常规和微波辅助合成方法,用4-硝基苯磺酰氯取代2-吡唑啉核的N1位置,以可观的产率合成了一系列的1,3,5-三取代-2-吡唑啉衍生物(3a – 3t)。诸如IR,质谱,1 H-NMR和13 C-NMR的理化和光谱表征以及元素分析确保了所提出衍生物的形成。药理研究表明,化合物3d表现出最高的抗抑郁活性,但是化合物3l与对照组相比,在被测剂量(50和100 mg / kg bw)下,被发现是最有效的抗焦虑药。分子对接模拟建立了其神经药理作用的可能机制,对MAO-A蛋白具有令人钦佩的亲和力。这些化合物与氨基酸残基Ala68,Tyr69,Phe208,Tyr407和Tyr444的某些关键相互作用也证明了这一点。此外,合成衍生物显示出令人鼓舞的药代动力学(ADME)和毒理学(神经毒性,致癌性,诱变性,生殖毒性,刺激性和急性毒性)参数,如计算程序所预测。根据OECD指南,通过完成行为神经毒性研究和急