2,5-Diaryloxadiazoles and their precursors as novel inhibitors of cathepsins B,H and L |
| |
| Institution: | 1. Centre of Excellence for Research in Sustainable Chemistry – CERSusChem, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil;2. Advanced Centre for Study and Research – CAEP, 13087-567 Campinas, SP, Brazil;1. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China;2. College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China |
| |
| Abstract: | High levels of cathepsins indicated in various pathological conditions like arthritis, cancer progressions, and atherosclerosis explains the need to explore potential inhibitors of these proteases which can be of great therapeutic significance. We, in the present work, report the synthesis of some 2,5-diaryloxadiazoles from N-subsitutedbenzylidenebenzohydrazides. The synthesized compounds were screened for their inhibitory potential on cathepsins B, H and L. Structure Activity Relationship studies show that 2,5-diaryloxadiazoles were less inhibitory than their precursors. 1i and 2k have been found to be most inhibitory to cathepsins B and L. Their Ki values have been calculated as 11.38 × 10?8 M and 66.4 × 10?8 M for cathepsin B and 4.2 × 10?9 M and 47.31 × 10?9 M for cathepsin L, respectively. However, cathepsin H activity was maximally inhibited by compounds, 1e and 2c with Ki values of 4.4 × 10?7 M and 5.6 × 10?7 M, respectively. Enzyme kinetic studies suggest that these compounds are competitive inhibitors to the enzymes. The results have been compared with docking results obtained using iGemDock. |
| |
| Keywords: | 2 5-Diaryloxadiazoles N-subsitutedbenzylidenebenzohydrazides Cathepsin B cathepsin H and cathepsin L inhibitors |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
