An expeditious one-pot microwave facilitated versus conventional syntheses: in vivo biological screening and molecular docking studies of some 3,5-disubstituted-4,5-dihydro-(1H)-pyrazole derivatives
作者:Avinash C. Tripathi、Savita Upadhyay、Sarvesh Paliwal、Shailendra K. Saraf
DOI:10.1007/s00044-015-1489-3
日期:2016.3
order to ascertain the binding interactions of the synthesized derivatives to the MAO-A target protein, molecular docking was employed which demonstrated the key interactions with the amino acid residues Asn181, Phe208, Tyr69, Tyr197, Tyr444 and Met445 at the binding site. In addition, the most active derivatives 2i and 2b showed some imperative conserved interactions of the PDB co-crystal ligand 2Z5X
通过使不同的芳族/杂芳族醛和酮发生反应,通过克莱森·史密特(Claisen Schmidt)缩合分两步反应,然后将生成的查耳酮与肼环合,合成了一系列3,5-二取代-2-吡唑啉衍生物(2a – 2t)使用常规方法和微波方法在碱存在下将水合。通过各种物理化学方法对合成的衍生物进行了表征,并通过红外,质谱,1 H-NMR,13 C-NMR光谱数据和元素分析确定了它们的化学结构。使用合适的动物模型评估了具有尾部悬浮试验和强迫游泳试验的抗抑郁药以及具有Elevated Plus Maze试验活性的抗焦虑药。化合物2i和2j通过减少两种试验中的固定时间来显示出显着的抗抑郁活性,而化合物2a和2b被发现具有良好的抗焦虑活性,方法是增加试验剂量下的手臂进入次数和开放手臂探索时间( 50和100 mg / kg bw),分别与标准药物丙咪嗪和地西epa相比。为了确定合成的衍生物与MAO-A靶蛋白的结合相互作