Abstract
Background: In the past decade CADD has emerged as a rational approach in drug development
so with the help molecular docking approach we planned to perform virtual screening
of the designed data set of Schiff bases of cinnamaldehyde. The research work will be helpful to
put some light on the drug receptor interactions required for anti-inflammatory activity.
Methods: For carrying out virtual screening of the developed cinnamaldehyde Schiff base data set,
AutoDock 4.0 was used. The active hits identified through in silico screening were synthesized.
Anti-inflammatory evaluation was carried out using Carrageenan-induced paw oedema method.
Results: Compounds V2A44, V2A55, V2A76, V2A82, V2A119, V2A141 and V2A142 has
shown highest binding energy (-4.84, -4.76, -4.59, -4.78, -4.74, -4.85 and -4.72 kcal/mol, respectively)
and the binding interactions with amino acids namely, Phe478, Glu479, Lys492, Ala493,
Asp497 and Ile498. Some of the analogs have shown significant activity and were comparable to
Indomethacin (standard drug).
Conclusion: Five new compounds have shown significant activity and the results obtained from
in silico studies are parallel to those of in vivo studies.
Keywords:
Schiff bases, cinnamaldehyde, virtual screening, anti-inflammatory agent, carragenan-induced paw oedema,
molecular docking.
Graphical Abstract
[2]
Shah S, Vyas R, Mehta RH. Synthesis, characterization and antibacterial activities of some new Schiff base compounds. J Indian Chem Soc 1992; 69: 590-6.
[4]
More PG, Bhalvankar RB, Patter SC. Schiff bases derived from substituted-2-aminothiazole and substituted salicylaldehyde and 2-hydroxy-1-napthaldehyde exhibits antibacterial and antifungal activity. J Indian Chem Soc 2001; 78: 474-5.
[6]
Dhar DN, Taploo CL. Schiff bases and their applications. J Sci Ind Res (India) 1982; 41: 501-6.
[16]
Nogardy T, Weaver DF. Medicinal Chemistry: A Molecular and Biochemical Approach Oxford University Press. New York 2005.
[21]
Lou ZQ, Qin B. Species systematization and quality evaluation of
commonly used Chinese traditional drugs, In: Beijing University Medical
Press, Beijing, China. 1985; 1: pp. 1-8. In:
[29]
Fang SH, Rao YK, Tzeng YM. Cytotoxic effect of trans-Cinnamaldehyde from Cinnamomum osmophloeum leaves on human cancer cell lines. Internat J Appl Sci Eng 2004; 2: 136-47.
[39]
Kulkarni SK. Practical Pharmacology and Clinical Pharmacy. Vallabh Publications 2009; pp. 250-2.
[43]
Khan KM, Ambreen N, Mughal UR, Jalil S, Perveen S, Choudhary MI. 3-Formylchromones: Potential anti-inflammatory agent, H E J
Research Institute of Chemistry, In: International Center for Chemical
and Biological Sciences, University of Karachi, Ka-rachi-75270,
Pakistan,. 2010.
[45]
Armitage P. Statistical Methods in Medical Research, 1st ed ,
Blackwell: In: Scientific, Oxford, London 1971; pp. 158-62. In: