Synthesis and Biological Evaluation of Some<i>N</i>-Arylpyrazoles and Pyrazolo[3,4-<i>d</i>]pyridazines as Anti-Inflammatory Agents
作者:Osama I. El-Sabbagh、Samia Mostafa、Hatem A. Abdel-Aziz、Hany S. Ibrahim、Mahmoud M. Elaasser
DOI:10.1002/ardp.201300193
日期:2013.9
4‐bis‐chalcone‐N‐arylpyrazoles 3a–k was prepared from diacetyl pyrazoles 2a–e. The reaction of 2d and 2e with hydrazine hydrate gave pyrazolo[3,4‐d]pyridazine derivatives 4a–b. Furthermore, the reaction of 2a–e with thiosemicarbazide afforded pyrazolo[3,4‐d]pyridazine thiocyanate salts 5a–e. The synthesized compounds were subjected to in vivo anti‐inflammatory and ulcerogenic activity measurements,
以二乙酰基吡唑 2a-e 为原料制备了一系列 3,4-双-查尔酮-N-芳基吡唑 3a-k。2d和2e与水合肼反应得到吡唑并[3,4-d]哒嗪衍生物4a-b。此外,2a-e 与氨基硫脲反应得到吡唑并[3,4-d]哒嗪硫氰酸盐 5a-e。除了测定其体外 COX 选择性外,还对合成的化合物进行了体内抗炎和致溃疡活性测量,以全面了解其抗炎活性。在合成的化合物中,化合物 3c、3f、3i 和 3e 显示出显着的抗炎活性。此外,进行对接研究以通过 COX 选择性解释它们的抗炎活性。