Journal of the Iranian Chemical Society

, Volume 11, Issue 2, pp 369–378 | Cite as

Synthesis, in vitro lipoxygenase inhibition, docking study and thermal stability analyses of novel indole derivatives

Non-isothermal kinetic study of potent LOX inhibitor N’-(diphenylmethylene)-2-(1H-indole-3-yl) acetohydrazide
  • Muhammad YarEmail author
  • Lala Rukh Sidra
  • Eleni Pontiki
  • Nafeesa Mushtaq
  • Muhammad Ashraf
  • Rumana Nasar
  • Islam Ullah Khan
  • Nasir Mahmood
  • Syed Ali Raza Naqvi
  • Zulfiqar Ali Khan
  • Sohail Anjum Shahzad
Original Paper


A series of indole derivatives has been synthesized and biologically evaluated to identify potent new lipoxygenase (LOX) inhibitors. All selected indole derivatives were screened for their LOX inhibition studies. Most of compounds showed good in vitro LOX inhibition properties exhibiting IC50 values in the range of 53.61 ± 0.14 to 198.61 ± 0.11 μM (mean ± SEM), as compared to the standard inhibitor baicalein with IC50 value 22.4 ± 1.3 μM. Structure activity relationship has been discussed and docking stimulation of most active compound 4f has also performed. Thermal stability and melting point of indole derivatives have been performed by thermal gravimetric analysis and differential scanning calorimetry analysis under nitrogen atmosphere at heating rate of 20 °C min−1. Compound 4f bearing bis-phenyl moiety has been found to be the most potent (IC50 53.61 ± 0.14 μM) and thermally most stable among the tested compounds. Imine (C=N) was found to be the key moiety for increasing the thermal stabilities of indole derivatives. FT-IR, NMR and elemental analysis techniques were performed for structural characterization.


Differential scanning calorimetry Thermal gravimetric analysis Lipoxygenase inhibitor Imine Indole-3-acetic acid 



We acknowledge Aamir Saghir for his guidance and Higher Education Commission and Ministry of Science and Technology Pakistan for financial support.

Supplementary material

13738_2013_308_MOESM1_ESM.docx (23 kb)
Supplementary material 1 (DOCX 23 kb)


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Copyright information

© Iranian Chemical Society 2013

Authors and Affiliations

  • Muhammad Yar
    • 1
    Email author
  • Lala Rukh Sidra
    • 1
  • Eleni Pontiki
    • 2
  • Nafeesa Mushtaq
    • 1
  • Muhammad Ashraf
    • 3
  • Rumana Nasar
    • 3
  • Islam Ullah Khan
    • 4
  • Nasir Mahmood
    • 5
  • Syed Ali Raza Naqvi
    • 6
  • Zulfiqar Ali Khan
    • 6
  • Sohail Anjum Shahzad
    • 7
  1. 1.Interdisciplinary Research Center in Biomedical MaterialsCOMSATS Institute of Information TechnologyLahorePakistan
  2. 2.Department of Pharmaceutical Chemistry, School of PharmacyAristotle University of ThessalonikiThessalonikiGreece
  3. 3.Department of Biochemistry and BiotechnologyThe Islamia University of BahawalpurBahawalpurPakistan
  4. 4.Department of ChemistryGovernment College UniversityLahorePakistan
  5. 5.Department of Allied Sciences and Chemical PathologyUniversity of Health SciencesLahorePakistan
  6. 6.Department of ChemistryGovernment College UniversityFaisalabadPakistan
  7. 7.Department of ChemistryCOMSATS Institute of Information TechnologyAbbottabadPakistan

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