Evaluation of 2-indolcarbohydrazones as potent α-glucosidase inhibitors, in silico studies and DFT based stereochemical predictions

Taha M 1 , Ismail NH 2 , Javaid K 3 , Imran S 2 , Anouar el H 4 , Wadood A 5 Show all authors , Atia-Tul-Wahab 6 , Ali M 7 , Khan KM 3 , Saad SM 3 , Rahim F 8 , Choudhary MI 9

Affiliations 

  • 1 Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia; Faculty of Applied Science UiTM, 40450 Shah Alam, Selangor, Malaysia. Electronic address: [email protected]
  • 2 Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia; Faculty of Applied Science UiTM, 40450 Shah Alam, Selangor, Malaysia
  • 3 H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
  • 4 Chemistry Department, College of Sciences and Humanities, Sattam bin Abdulaziz University, P.O. Box 83, Al-Kharj 11942, Saudi Arabia
  • 5 Department of Biohemistry, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
  • 6 Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
  • 7 Center for Advanced Drug Research, COMSATS Institute of Information Technology, University Road, Abbottabad 22060, KPK, Pakistan
  • 8 Department of Chemistry, Hazara University, Mansehra 21120, Khyber Pukhtunkhwa, Pakistan
  • 9 Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia; Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21412, Saudi Arabia
Bioorg Chem, 2015 Dec;63:24-35.
PMID: 26398141 DOI: 10.1016/j.bioorg.2015.09.001

Abstract

2-Indolcarbohydrazones 1-28 were synthesized and evaluated for their α-glucosidase inhibitory potential. A varying degree of inhibitory potential with IC50 values in the range of 2.3±0.11-226.4±6.8μM was observed while comparing these outcomes with the standard acarbose (IC50=906.0±6.3μM). The stereochemistry of ten (10) randomly selected compounds (1, 3, 6, 8, 12, 18, 19, 23, 25 and 28) was predicted by Density Functional Theory (DFT). The stability of E isomer was deduced by comparing the calculated and experimental vibration modes of νCO, νNC and νCH (CH in NCH-R). It was observed that except compound 18, all other compounds were deduced to have E configuration while molecular modeling studies revealed the key interactions between enzyme and synthesized compounds.

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