Structural exploration, synthesis and pharmacological evaluation of novel 5-benzylidenethiazolidine-2,4-dione derivatives as iNOS inhibitors against inflammatory diseases
摘要:
In our previous work, 3I inhibited the LPS-induced iNOS activity and NO production in RAW 264.7 cells and improved joint inflammation and cartilage destruction in inflammatory model. In this study, we synthesized 59 derivatives and bioisosteres on the basis of 3I by Knoevenagel condensation and biologically evaluated for the study of structure-activity relationship (SAR). We found that 7-44 suppressed the iNOS activity (IC50 25.2 mu M) and LPS-induced NO production (IC50 45.6 mu M) in RAW 264.7 cells. As for the SAR study, the dimethoxylphenyl group of 7-44 was potential for a further modification. At a dose of 10 mg/kg, oral administration of 7-44 possessed protective properties in both carrageenan-induced paw edema of male ICR mice and adjuvant-induced arthritis of Lewis female rats. Although the activity of 7-44 was slightly inferior, the PK profiles of 7-44 were superior to those of 3I. (C) 2014 Elsevier Masson SAS. All rights reserved.
通过点击化学反应合成了5-[(1 H-吲哚-3-基)亚甲基]噻唑烷-2,4-二酮-[1,2,3]三唑杂化衍生物,并筛选了对革兰氏阳性和革兰氏阴性的抗菌活性细菌和真菌种类。所有合成的化合物均通过1 H和13 C NMR,IR和MS光谱表征。抗菌研究表明,几种产品显示出高活性,某些产品被确定为潜在的抗真菌活性剂。