Unexpected formation of 3-chloro-1-hydroxy-2,6-diarylpiperidin-4-ones: synthesis, antibacterial and antifungal activities |
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| Authors: | Gopalakrishnan M Thanusu J Kanagarajan V Govindaraju R |
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| Affiliation: | Synthetic Organic Chemistry Laboratory, Department of Chemistry, Annamalai University, Annamalainagar, Tamil Nadu, India. profmgk@yahoo.co.in |
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| Abstract: | New 3-chloro-1-hydroxy-2,6-diarylpiperidin-4-ones 18-22 were synthesized, characterized by melting point, elemental analysis, MS, FT-IR, one-dimensional NMR ((1)H & (13)C) spectroscopic data and evaluated for their in vitro antibacterial and antifungal activities. All the newly synthesized compounds exerted a wide range of antibacterial activities against the entire tested gram-positive and gram-negative bacterial strains except Escherichia coli. Compounds 21 and 22 exerted strong antifungal activities against Aspergillus flavus, mucor and Microsporum gypsuem. In addition, compound 20 was more potent against Rhizopus. |
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