Benzoflavones as cholesterol esterase inhibitors: Synthesis, biological evaluation and docking studies

Harbinder Singh, Jatinder Vir Singh, Manish K. Gupta, Palwinder Singh, Sahil Sharma, Kunal Nepali, Preet Mohinder S. Bedi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A library of forty 7,8-benzoflavone derivatives was synthesized and evaluated for their inhibitory potential against cholesterol esterase (CEase). Among all the synthesized compounds seven benzoflavone derivatives (A-7, A-8, A-10, A-11, A-12, A-13, A-15) exhibited significant inhibition against CEase in in vitro enzymatic assay. Compound A-12 showed the most promising activity with IC50value of 0.78 nM against cholesterol esterase. Enzyme kinetic studies carried out for A-12, revealed its mixed-type inhibition approach. Molecular protein–ligand docking studies were also performed to figure out the key binding interactions of A-12 with the amino acid residues of the enzyme's active site. The A-12 fits well at the catalytic site and is stabilized by hydrophobic interactions. It completely blocks the catalytic assembly of CEase and prevents it to participate in ester hydrolysis mechanism. The favorable binding conformation of A-12 suggests its prevailing role as CEase inhibitor.

Original languageEnglish
Pages (from-to)850-854
Number of pages5
JournalBioorganic and Medicinal Chemistry Letters
Volume27
Issue number4
DOIs
Publication statusPublished - Jan 1 2017
Externally publishedYes

Fingerprint

Benzoflavones
Anticholesteremic Agents
Sterol Esterase
compound A 12
Catalytic Domain
Derivatives
Enzyme kinetics
antineoplaston A10
Enzyme Assays
Enzymes
Conformations
Hydrolysis
Assays
Hydrophobic and Hydrophilic Interactions
Esters
Libraries
Amino Acids

Keywords

  • Baker Venkataraman rearrangement
  • Benzoflavone
  • Cholesterol esterase inhibition
  • Docking studies
  • Enzyme kinetics

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

Cite this

Benzoflavones as cholesterol esterase inhibitors : Synthesis, biological evaluation and docking studies. / Singh, Harbinder; Singh, Jatinder Vir; Gupta, Manish K.; Singh, Palwinder; Sharma, Sahil; Nepali, Kunal; Bedi, Preet Mohinder S.

In: Bioorganic and Medicinal Chemistry Letters, Vol. 27, No. 4, 01.01.2017, p. 850-854.

Research output: Contribution to journalArticle

Singh, Harbinder ; Singh, Jatinder Vir ; Gupta, Manish K. ; Singh, Palwinder ; Sharma, Sahil ; Nepali, Kunal ; Bedi, Preet Mohinder S. / Benzoflavones as cholesterol esterase inhibitors : Synthesis, biological evaluation and docking studies. In: Bioorganic and Medicinal Chemistry Letters. 2017 ; Vol. 27, No. 4. pp. 850-854.
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