Design, Synthesis, Molecular Docking and Biological Evaluation of Novel Coumarin-Oxime Ether Derivatives as COX-2 Inhibitors
作者:M. Vijaya Bhargavi、P. Shashikala、M. Sumakanth、Shravan Kumar Gunda
DOI:10.14233/ajchem.2017.20865
日期:——
Coumarin-oxime ether derivatives (14-25) were synthesized by an efficient and straight forward procedure from the reaction of 3-acetyl coumarin (1) and o-substituted benzyl hydroxyl amines (2-13) in pyridinium p-toluenesulfonate/dichloromethane (PPTS/DCM) at reflux temperature. High yields and simple operations are important features of this methodology. The method is very useful for the construction of many biologically active oxime ether derivatives. The structures of the synthesized compounds are established based on IR, NMR and MASS spectrometry. Molecular docking studies were performed against selective COX-2 enzyme using Discovery Studio v3.5. The compounds with good LibDock score were screened for their in vivo anti-inflammatory activity by paw edema method, employing indomethacin as a reference standard.
香豆素-肟醚衍生物(14-25)是由 3-乙酰基香豆素(1)和邻取代苄基羟胺(2-13)在吡啶对甲苯磺酸盐/二氯甲烷(PPTS/DCM)中于回流温度下反应合成的,该过程高效且简单。产量高、操作简单是该方法的重要特点。该方法非常适用于制造许多具有生物活性的肟醚衍生物。根据红外光谱、核磁共振和质谱分析,确定了合成化合物的结构。使用 Discovery Studio v3.5 针对选择性 COX-2 酶进行了分子对接研究。以吲哚美辛为参考标准,采用爪水肿法对 LibDock 得分较高的化合物进行了体内抗炎活性筛选。