Synthesis and Biological Evaluation of the Pyrazole Class of Cyclooxygenase- 2-Inhibitors
作者:Samia Rida、Manal Saudi、Amal Youssef、Madiha Halim
DOI:10.2174/157017809788489909
日期:2009.6.1
Several 1,3,4-trisubstituted pyrazole derivatives were synthesized via condensation with the appropriate amine, sulphonamide, acid hydrazide, or benzyl thiosemicarbazide derivatives. The newly synthesized compounds were screened for a possible anti-inflammatory effect in a rat model of air-pouch carrageenan-induced inflammation. The results revealed that some of the newly synthesized compounds exhibited a significant anti-inflammatory effect in terms of reducing exudation and/or leukocytic accumulation at the site of inflammation. Thus, compared to carrageenan-induced inflammation group, compounds 3, 9, 13, and 17 were particularly associated with significant decrease in both the volume of exudate and leukocyte accumulation while compounds 4, 7, 10, 11 and 15 were associated with significant decrease in the volume of inflammatory exudate without a corresponding decrease in the number of accumulated leukocytes. Moreover, a docked pose of compound 17 was obtained and bound to cyclooxygenase active site of COX-2 using Molecular Operating Environment (MOE) module.
合成了几种1,3,4-三取代吡唑衍生物,这些衍生物通过与适当的胺、磺胺类、酸肼或苄基硫代氨基脲衍生物的缩合反应制得。新合成的化合物在大鼠空气袋卡拉胶诱导的炎症模型中进行了抗炎效果的筛选。结果显示,部分新合成的化合物在减轻渗出和/或白细胞聚集方面表现出显著的抗炎效果。因此,与卡拉胶诱导的炎症组相比,化合物3、9、13和17在渗出液体积和白细胞聚集方面均显著减少,而化合物4、7、10、11和15则在炎症渗出液体积上显著降低,但与白细胞数量的减少无明显关联。此外,化合物17的对接位姿已获得,并结合到COX-2的环氧合酶活性位点,使用了分子操作环境(MOE)模块。