Synthesis, in vitro evaluation and molecular docking studies of novel coumarin-isatin derivatives as α-glucosidase inhibitors.
This study synthesized a series of novel coumarin-isatin derivatives and evaluated them for α-glucosidase inhibitory activity. The majority of the screened compounds exhibited excellent inhibition activities with IC50values of 2.56 ± 0.08-268.79 ± 3.04 μm, when compared to acarbose. Among the newly derivatives, compound 5p was found to be the most active compound in the library of coumarin-isatin derivatives. Furthermore, enzyme kinetic studies showed that compound 5p is a non-competitive inhibitor with a Kiof 2.14 μm. Molecular docking analysis revealed the existence of hydrophobic and hydrogen interactions between compound 5p and the active site of α-glucosidase. Our results indicate that coumarin-isatin derivatives as a new class of α-glucosidase inhibitors.
College of Chemistry and Chemical Engineering, Jishou University, Jishou, China.
Guangcheng
G
Wang
College of Chemistry and Chemical Engineering, Jishou University, Jishou, China.
Jing
J
Wang
College of Chemistry and Chemical Engineering, Jishou University, Jishou, China.
Dianxiong
D
He
College of Chemistry and Chemical Engineering, Jishou University, Jishou, China.
Xin
X
Li
College of Chemistry and Chemical Engineering, Jishou University, Jishou, China.
Juan
J
Li
College of Chemistry and Chemical Engineering, Jishou University, Jishou, China.
Zhiyun
Z
Peng
D003374:Coumarins / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D004353:Drug Evaluation, Preclinical / Q000379:methods; D065089:Glycoside Hydrolase Inhibitors / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D020128:Inhibitory Concentration 50; D007510:Isatin / Q000737:chemistry; D062105:Molecular Docking Simulation; D011487:Protein Conformation; D013329:Structure-Activity Relationship; D000520:alpha-Glucosidases / Q000737:chemistry / Q000378:metabolism
D003374:Coumarins; D065089:Glycoside Hydrolase Inhibitors; D007510:Isatin; D000520:alpha-Glucosidases
coumarin; enzyme kinetic study; isatin; molecular docking; α-glucosidase inhibitor