Synthesis, characterisation, biological evaluation and in silico studies of sulphonamide Schiff bases
Journal of Enzyme Inhibition and Medicinal Chemistry, vol.35, no.1, pp.950-962, 2020 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 35 Issue: 1
- Publication Date: 2020
- Doi Number: 10.1080/14756366.2020.1746784
- Journal Name: Journal of Enzyme Inhibition and Medicinal Chemistry
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, EMBASE, Food Science & Technology Abstracts, MEDLINE, Directory of Open Access Journals
- Page Numbers: pp.950-962
- Keywords: Acetylcholinesterase, carbonic anhydrase, molecular docking, sulphonamide, synthesis
- Bilecik Şeyh Edebali University Affiliated: No
Abstract
Sulphonamides are biologically important compounds with low toxicity, many bioactivities and cost-effectiveness. Eight sulphonamide derivatives were synthesised and characterised by FT-IR, 13C NMR, 1H NMR, LC-MS and elemental analysis. Their inhibitory effect on AChE, and carbonic anhydrase I and II enzyme activities was investigated. Their antioxidant activity was determined using different bioanalytical assays such as radical scavenging tests with ABTS•+, and DPPH•+ as well as metal-reducing abilities with CUPRAC, and FRAP assays. All compounds showed satisfactory enzyme inhibitory potency in nanomolar concentrations against AChE and CA isoforms with KI values ranging from 10.14 ± 0.03 to 100.58 ± 1.90 nM. Amine group containing derivatives showed high metal reduction activity and about 70% ABTS radical scavenging activity. Due to their antioxidant activity and AChE inhibition, these novel compounds may be considered as leads for investigations in neurodegenerative diseases.