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Abstract

A library of new dihydropyrazole derivatives have been synthesized from well designed curcumin analogues by reaction of chalcone derivatives with phenylhydrazine. All the synthesized compounds were characterized by spectroscopic (1H and 13C NMR, IR spectra), spectrometric (Mass spectra) data and elemental analysis. Dihydro-pyrazoles exhibited characteristic dd (double doublet) due to presence of optically active carbon of pyrazole ring. All the synthesized compounds were also evaluated for their antifungal potential against six different fungal starins. Evaluated heterocyles showed potent inhibitory property against tested fungal strains with minimum inhibitory concentration (MIC) values upto 3.12 μg/mL. Heterocyles with nitro and methoxy substitutions were showing best antifungal activities. Among 20 different derivatives tested for biological activity SAR has been developed between the various substitutions at phenyl ring of synthesized heterocycles.

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Dihydropyrazoles Curcumin Antifungal activity

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Deepak Tripathi, V., & Saxena, N. (2019). Synthesis and Antifungal Activity of New Dihydropyrazoles of Designed Curcumin Analogues. Asian Journal of Organic & Medicinal Chemistry, 4(2), 94–100. https://doi.org/10.14233/ajomc.2019.AJOMC-P179
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