Novel pyrazoles and pyrazolo[1,2- a ]pyridazines as selective COX-2 inhibitors; Ultrasound-assisted synthesis, biological evaluation, and DFT calculations
作者:Nagat Ghareb、Hosam A. Elshihawy、Mohamed M. Abdel-Daim、Mohamed A. Helal
DOI:10.1016/j.bmcl.2017.04.020
日期:2017.6
devoid of ulcerogenic activity. Herein, we report the design and synthesis of a series of pyrazoles and pyrazolo[1,2-a]pyridazines with selective COX-2 inhibitory activity and in vivo anti-inflammatory effect. Both series were accessed through acid-catalyzed ultrasound-assisted reactions. The most active compounds in this study are two novel molecules, 11 and 16, showing promising selectivity and decent
COX-2是一种介导炎症反应的诱导酶。COX-2的选择性靶向可用于开发无溃疡活性的抗炎药。在这里,我们报告设计和合成一系列具有选择性COX-2抑制活性和体内抗炎作用的吡唑和吡唑并[1,2-a]哒嗪。通过酸催化的超声辅助反应可以访问两个系列。这项研究中活性最高的化合物是两个新分子11和16,分别显示出有希望的选择性和16.50和20.1nM的适度IC50。这些化合物也停靠在COX-2酶的晶体结构(PDB ID:3LN1)中,以了解其结合方式。最后,使用DFT方法计算了化合物11和塞来昔布的Mulliken电荷和静电表面电势,以深入了解该化合物活性的分子决定因素。这些结果可能导致开发具有改进的选择性的新型COX-2抑制剂。