Design, Synthesis and Biological Evaluation of Novel Quinazoline-Based Anti-inflammatory Agents Acting as PDE4B Inhibitors
作者:Rabah Ahmed Taha Serya、Abeer Hussin Abbas、Nasser Saad Mohamed Ismail、Ahmed Esmat、Dalal Abdelrahman Abou El Ella
DOI:10.1248/cpb.c14-00737
日期:——
A novel series of quinzoline based compounds (IIIa–d, VIa–f, IXa–f) were designed, synthesized and screened for their inhibitory activity towards the PDE4B isoform. The in vivo anti-inflammatory effect of the titled compounds (IIIa–d, VIa–f, IXa–f) as well as their effect on the level of tumor necrosis factor (TNF-α) were evaluated. Among all of the synthesized compounds, IXb, IXd and IXf, exhibited good inhibitory activity against PDE4B enzyme with inhibition percentages of 42, 62 and 68%, respectively. Most of the tested compounds showed potent anti-inflammatory activity compared to indomethacin with a marked decrease in TNF-α level. The ulcerogenic effect of the tested compounds was also examined. The gastric mucosa of the tested animals remained intact after oral administration of the hit compounds. Additionally, docking study was used to explore the possible binding mode of the active compounds on the PDE4B enzyme as well as to illustrate the selectivity of the active hits on the PDE4B isoform.
设计、合成并筛选了一系列基于喹唑啉的化合物(IIIa–d、VIa–f、IXa–f),以评估它们对PDE4B亚型的抑制活性。评估了目标化合物(IIIa–d、VIa–f、IXa–f)的体内抗炎作用及其对肿瘤坏死因子(TNF-α)水平的影响。在所有合成的化合物中,IXb、IXd和IXf对PDE4B酶表现出良好的抑制活性,抑制百分比分别为42%、62%和68%。与吲哚美辛相比,大多数测试化合物显示出强大的抗炎活性,TNF-α水平显著降低。还检查了测试化合物的致溃疡作用。测试动物在接受命中化合物的口服给药后,胃粘膜保持完整。此外,对接研究用于探索活性化合物在PDE4B酶上的可能结合模式,并说明活性命中对PDE4B亚型的选择性。