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- Title
A Convenient Synthesis of Short α-/β-Mixed Peptides as Potential α-Amylase Inhibitors.
- Authors
Ahmed, Naeem; Razzaq, Fakhira; Arfan, Muhammad; Gatasheh, Mansour K.; Nasir, Hammad; Ali, Joham Sarfraz; Hafeez, Hamna
- Abstract
Over the last decades, the increased incidence of metabolic disorders, such as type two diabetes and obesity, has motivated researchers to investigate new enzyme inhibitors. Inhibition of the α-amylase enzyme is one therapeutic approach in lowering glucose levels in the blood to manage diabetes mellitus. The objective of this study was to synthesize short α-/β-mixed peptides in the solution phase. The Boc-protected α-L-leucine was converted to β-analogue by using Arndt–Eistert synthesis with the advantage of no racemization and retention of configuration. Three novel short peptides were successfully synthesized: N(Boc)-Gly-β-Leu–OCH3(14), N(Boc)-O(Bz)α-Ser-β-Leu–OCH3(16), and N(Boc)-O(Bz)-α-Tyr-α-Gly-β-Leu–OCH3(17), characterized by FTIR and 1H NMR analysis. The synthesized peptide 16 showed highest inhibitory activity (45.22%) followed by peptide 14 (18.51%) and peptide 17 (17.05%), respectively. Intriguingly, peptide 16 showed higher inhibition on α-amylase compared with other α-/β-mixed peptides.
- Publication
Molecules, 2024, Vol 29, Issue 17, p4028
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules29174028