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Design, synthesis and biological evaluation of N ‐substituted indole‐thiazolidinedione analogues as potential pancreatic lipase inhibitors
Author(s) -
George Ginson,
Auti Prashant S.,
Paul Atish T.
Publication year - 2021
Publication title -
chemical biology and drug design
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 77
eISSN - 1747-0285
pISSN - 1747-0277
DOI - 10.1111/cbdd.13846
Subject(s) - knoevenagel condensation , indole test , chemistry , ic50 , enzyme , lipase , thiazolidinedione , biochemistry , non competitive inhibition , stereochemistry , in vitro , biology , diabetes mellitus , type 2 diabetes , endocrinology , catalysis
Pancreatic Lipase (PL) is a key enzyme responsible for the digestion of 50%–70% of dietary triglycerides, hence its inhibition is considered as a viable approach for the management of obesity. A series of indole‐TZD hybrid analogues were synthesized, characterized and evaluated for their PL inhibitory activity. Knoevenagel condensation of various substituted indole‐3‐carboxaldehyde with substituted thiazolidinediones resulted in the formation of titled analogues. Analogues 6d and 6e exerted potent PL inhibitory activity (IC 50 ‐6.19 and 8.96 µM, respectively). Further, these analogues exerted a competitive mode of PL inhibition. Moreover, molecular modelling studies were in agreement with the in vitro results (Pearson's r  = .8682, p  < .05). The fluorescence spectroscopic analysis further supported the strong binding affinity of these analogues with PL. A molecular dynamics study (20 ns) indicated that these analogues were stable in a dynamic environment. Thus, the present study highlighted the potential role of indole‐thiazolidinedione hybrid analogues as potential PL inhibitors and further optimization might result in the development of new PL inhibitory lead candidates.

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