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Synthesis and evaluation of antifungal activity studies of novel 2-(2-pyridyl)-2H-pyrazole-3-carboxamide derivatives

Kunjumon Dayana, Raja Mohamed Kamil, Megaravalli R Manasa, Santhosh M Mathew, Sarah Chatterjee.


Background: Invasive fungal infections have negative impact on the health of immunocompromised individuals. With the development of fungal resistance to currently available antifungal drugs, there is a need to develop novel compounds with antifungal activity.

Aims and Objectives: The objectives of the study are as follows: (1) To synthesize novel 2-(2-pyridyl)-2H-pyrazole-3-carboxamide derivatives and (2) to evaluate the antifungal activity of novel 2-(2-pyridyl)-2H-pyrazole-3-carboxamide derivatives.

Materials and Methods: Novel 2-(2-pyridyl)-2H-pyrazole-3-carboxamide derivatives were prepared by multi step synthesis and characterized by LC-MS, 1HNMR and 13C NMR. The antifungal activity of these derivatives was assessed using Fusarium oxysporum, Aspergillus flavus, and Candida albicans by disc diffusion method.

Results: We have synthesized fourteen derivatives of 2-(2-pyridyl)-2H-pyrazole-3-carboxamide. Most of the compounds possess good antifungal activity against F. oxysporum and C. albicans strains.

Conclusion: We synthesized a series of novel 2-(2-pyridyl)-2H-pyrazole-3-carboxamide derivatives having good antifungal activity against F. oxysporus and C. albicans using a simple and low cost procedure.

Key words: Pyrazole; 2-(2-pyridyl)-2H-pyrazole-3-carboxamide; Synthesis; Antifungal activity

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