Synthesis of Co(II) Metal Complexes of Tryptanthrin Schiff Bases, Characterization, their Biological Evaluation, and Molecular Docking Studies
Journal: Asian Journal of Green Chemistry (Vol.8, No. 4)Publication Date: 2024-07-12
Authors : M. Sridhar; Gangalla Ravi; K. Laxma Reddy; P. Muralidhar Reddy; P. Ramesh; A. Krishnam Raju;
Page : 441-456
Keywords : ;
Abstract
Tryptanthrin derived Schiff base ligands and their corresponding Co (II) metal complexes[Co(II)(trypNNH2)2Cl2], [Co(trypNNHPh)Cl2], [Co(II)-(trypNOH)2] and [Co(trypNNHCSNH2)2] were synthesized by directly reacting Tryptanthrin derived ligands (L1–L4) with CoCl2.6H2O in methanol/DMF at a 2:1 ratio solvent system under reflux condition for 72h. The complexes were characterized and confirmed by Mass, IR, elemental analysis, and Electronic spectral data. The synthesized complexes have been screened for biological evaluation, such as anti-cancer activity against MCF-7, HeLaby the MTT assay. Cisplatin used as a standard drug. Among the tested complexes, Complex [Co(II)(trypNNH2)2Cl2] with an IC50 value of 11.09 ± 1.25 µM and 9.31 ± 1.07 µM against MCF-7 and HeLa, respectively, exhibited most effective anti-cancer activity. Molecular docking investigations were done on IDO1 target by using auto dock. These findings match experimental studies. Among the studied complexes, complex [Co(trypNNH2)2Cl2] with the lowest binding energy of -11.42 kcal/mol, shown its strongest binding with the protein. The complexes were further examined for anti-bacterial activity against two gram+ve bacteria (B. Subtilis and S. Aureus), two Gram -ve bacteria (K. Pneumoniae and E. Coli) and anti-fungal activity against A. Niger and C. Albicans. Most of the synthesized complexes showed good anti-microbial activity. Complex [Co(trypNNHCSNH2)2] shown excellent anti-bacterial activity, while the complex [Co (trypNOH)2]exhibited good anti-fungal activity.
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Last modified: 2024-07-12 01:43:13