[1-(4-Nitrobenzyl)-2-butyl-4-chloro-1H-imidazol-5-yl]-4, 5-dihydro-1-phenyl-1H-pyrazole: Synthesis, Anti-Inflammatory and Analgesic Activities

Abstract

In the present investigation, series of Bis (heterocycle)s bearing pyrazoline in combination of the imidazole derivatives have been synthesized via 1,3-dipolar cycloaddition reactions of N-(nitrobenzyl)-imidazole nitrile imines with different dipolarophiles. All the newly synthesized compounds were characterized and screened for analgesic-anti-inflammatory activities and were compared with the standard drugs. The compounds exhibited excellent anti-inflammatory and analgesic activities. Out of the compounds studied 4b, 4d and 4g compounds shown statistically significant activity comparable to the standard drugs Ibuprofen and Aspirin at the same dose.

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S. Sreenivasa and B. Shankar, "[1-(4-Nitrobenzyl)-2-butyl-4-chloro-1H-imidazol-5-yl]-4, 5-dihydro-1-phenyl-1H-pyrazole: Synthesis, Anti-Inflammatory and Analgesic Activities," Open Journal of Medicinal Chemistry, Vol. 3 No. 2, 2013, pp. 50-54. doi: 10.4236/ojmc.2013.32007.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] E. Palaska, D. Erol and R. Demirdamar, “Synthesis and Antidepressant Activities of Some 1,3,5-Triphenyl-2-Pyrazolines,” European Journal of Medicinal Chemistry, Vol. 31, No. 1, 1996, pp. 43-47. doi:10.1016/S0223-5234(96)80005-5
[2] G. Dannahardt, W. Kiefer, G. Kramer, S. Maehrlein, U. Nowe and B. Fiebich, “The Pyrrole Moiety as a Template for COX-1/COX-2 Inhibitors,” European Journal of Medicinal Chemistry, Vol. 35, No. 5, 2000, pp. 499-510. doi:10.1016/S0223-5234(00)00150-1
[3] H. Mallesha, K. R. Ravikumar, K. Mantelingu and K. S. Rangappa, “Synthesis and Characterization of Model Ultimate Carcinogens/Metabolites Derived from Lead Tetraacetate Oxidation of Arylnitrones: 2’-Deoxyguanosine Adducts,” Synthesis, Vol. 2001, No. 10, 2001, pp. 1459-1461. doi:10.1055/s-2001-16096
[4] D. H. Slee, S. J. Romano, J. Yu, T. N. Nguyen, J. K. John, N. K. Raheja, F. U. Axe, T. K. Jones and W. C. Ripka, “Development of Potent Non-Carbohydrate Imidazole-Based Small Molecule Selectin Inhibitors with Antiinflammatory Activity,” Journal of Medicinal Chemistry, Vol. 44, No. 13, 2001, pp. 2094-2107. doi:10.1021/jm000508c
[5] U. Umit, G. N. Karaburun and L. Ihan, II Farmaco, Vol. 56, 2001, p. 285.
[6] S. Khabnadideh, Z. Rezaei, A. Khalafi-Nezhad, R. Bahrinajafi, R. Mahamadi and A. A. Farrokhroz, “Synthesis of N-Alkylated Derivatives of Imidazole as Antibacterial Agents,” Bioorganic & Medicinal Chemistry Letters, Vol. 13, No. 17, 2003, pp. 2863-2865. doi:10.1016/S0960-894X(03)00591-2
[7] N. S. Gunnay, G. N. Ulusoy, N. Ergenc, G. Otuk and D. Kaya, II Farmaco, Vol. 54, 1999, p. 826.
[8] P. Gupta, S. Hameed and S. R. Jain, “Ring-Substituted Imidazoles as a New Class of Anti-Tuberculosis Agents,” European Journal of Medicinal Chemistry, Vol. 39, No. 9, 2004, pp. 805-814. doi:10.1016/j.ejmech.2004.05.005
[9] Z. Soyer, F. Sultan, K. K. Erol and V. Pabuccuolu, II Farmaco, Vol. 59, 2004, p. 595.
[10] S. A. Laufer, H. G. Striegel and G. K. Wagner, “Imidazole Inhibitors of Cytokine Release: Probing Substituents in the 2 Position,” Journal of Medicinal Chemistry, Vol. 45, No. 21, 1993, pp. 4695-4705. doi:10.1021/jm020873z
[11] T. Nakamura, H. Kakinuma, H. Umemiya, H. Amada, N. Miyata, K. Taniguchi, K. Bando and M. Sato, “Imidazole Derivatives as New Potent and Selective 20-HETE Synthase Inhibitors,” Bioorganic & Medicinal Chemistry Letters, Vol. 14, No. 2, 2004, pp. 333-336.
[12] D. J. Carini, J. V. Duncia, P. E. Aldrich, A. T. Chiu, A. L. Johnson, M. E. Pierce, W. A. Price, J. B. Santella III, G. J. Wells, P. C. Wexler, S. W. Yoo and P. B. M. W. M. Timmermans, “Nonpeptide Angiotensin II Receptor Antagonists: The Discovery of a Series of N-(Biphenylylmethyl) Imidazoles as Potent, Orally Active Antihypertensives,” Journal of Medicinal Chemistry, Vol. 34, No. 8, 1991, pp. 2525-2547. doi:10.1021/jm00112a031
[13] P. Caramella and P. Gruinanger, In: A. Padwa, Ed., 1,3-Dipolar Cycloaddition Chemistry, Vol. 1, Wiley Interscience, New York, 1984, p. 337.
[14] R. Huisgen, M. Seidel, J. Sauer, J. M. McFarland and G. Wallibillich, “Communications: The Formation of Nitrile Imines in the Thermal Breakdown of 2,5-Disubstituted Tetrazoles,” The Journal of Organic Chemistry, Vol. 24, No. 6, 1959, pp. 892-893. doi:10.1021/jo01088a034
[15] R. Huisgen, M. Seidel, G. Wallibillich and H. Knupfer, “Diphenyl-Nitrilimin und Seine 1.3-Dipolaren Additionen an Alkene und Alkine,” Tetrahedron, Vol. 17, No. 1-2, 1962, pp. 3-29. doi:10.1016/S0040-4020(01)99001-5
[16] M. Marky, H. Meier, A. Wunderli, H. Hemigartner, H. Schmidt and H. J. Hansen, “Zum Photochemischen Verhalten von Sydnonen und 1,3,4-Oxadiazolin-2-Onen. 56. Mitteilung über Photoreaktionen,” Helvetica Chimica Acta, Vol. 61, No. 4, 1978, pp. 1477-1510. doi:10.1002/hlca.19780610432
[17] W. A. Gladstone, J. B. Aylward and R. O. C. Norman, Journal of the Chemical Society, 1969, p. 2587.
[18] K. M. LokanathRai and A. Hassner, “Intramolecular 1,3-Diploar Cycoaddition of Nitrile Oxides with Vinyl Acetate and Acrylonitrile,” Indian Journal of Chemistry, Vol. 36B, 1997, pp. 242-245.
[19] V. Padmavathi, B. J. M. Reddy, B. C. O. Reddy and A. Padmaja, “Synthesis of a New Class of Keto-Linked Bis Heterocycles,” Tetrahedron, Vol. 61, No. 9, 2005, pp. 2407-2411. doi:10.1016/j.tet.2005.01.018
[20] B. Jayashankara and K. M. L. Rai, “Synthesis and Evaluation of Antimicrobial Activity of a New Series of Bis(Isoxazoline) Derivatives,” ARKIVOC, Vol. 2008, No. 11, 2008, pp. 75-85.
[21] A. I. Vogel, A. R. Tatchell, B. S. Furnis, A. J. Hannaford and P. W. G. Smith, “Vogel’s Text Book of Practical Organic Chemistry,” 5th Edition, Longmann, London, 1989, p. 1258.
[22] C. V. Winter, E. A. Risley and G. W. Nuss, “Carrageenin-Induced Edema in Hind Paw of the Rat as an Assay for Antiinflammatory Drugs,” Proceedings of the Society for Experimental Biology and Medicine, Vol. 111, No. 3, 1962, pp. 544-547. doi:10.3181/00379727-111-27849
[23] R. Koster, M. Anderson and E. F. de Beer, “Acetic Acid for Analgesic Screening,” Federation Proceedings, Vol. 18, 1952, p. 412.

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