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Benzylidine-N-Phenylhydrazine-1-Carboxamide Derivatives As Tyrosinase Inhibitors: Design, Preparation, Molecular Docking, and Biological Activity Publisher



Hamedifar H1, 2 ; Karimian S3 ; Kabiri M3 ; Bagheri A4 ; Zarei M3 ; Moazzam A4 ; Mahdavi M4 ; Sepehri N1, 2 ; Khoshneviszadeh M3
Authors
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Authors Affiliations
  1. 1. CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
  2. 2. CinnaGen Research and Production Co., Alborz, Iran
  3. 3. Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
  4. 4. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: ChemistrySelect Published:2023


Abstract

Ten novel benzylidine-N-phenylhydrazine-1-carboxamide derivatives (7 a–7 j) were synthesized in three steps and evaluated for their tyrosinase inhibitory and antioxidant activities. The spectrophotometric method with L–DOPA as a substrate was used to determine tyrosinase inhibitory activities, and a DPPH assay was used to evaluate antioxidant properties. Among the synthesized compounds, compound 7 c with an ethyl substitution on the C2-N-phenylacetamide ring showed the highest tyrosinase-inhibition activity (IC50=4.36±1.58 μM), which was comparable with that of standard kojic acid (IC50=16.34±1.93 μM). Compounds (7 d) and (7 e) showed potent antioxidant activities (EC50=52.11±4.18 and 92.47±3.32 μM, respectively), which were comparable to those of quercetin. The study of the interactions and binding modes of the tested compounds was accomplished with molecular docking. Docking results corroborated that the active inhibitors were well placed in the mushroom tyrosinase enzyme‘s active site. © 2023 Wiley-VCH GmbH.