Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/19640
Title: Microwave assisted synthesis of new coumarin based 3-cyanopyridine scaffolds bearing sulfonamide group having antimicrobial activity
Authors: Desai, N C
Satodiya, H M
Rajpara, K M
Joshi, V V
Vaghani, H V
Keywords: Coumarin;3-cyanopyridine;Sulfonamide;Antimicrobial activity;Microwave
Issue Date: Jul-2013
Publisher: NISCAIR-CSIR, India
Abstract: A new coumarin based 3-cyanopyridine scaffolds bearing biologically active sulfonamide group has been inserted using both conventional and microwave method. Initial step involves the synthesis of 2-amino-6-(6-fluoro-2-oxo-2H-chromen-3-yl)-4-(aryl)nicotinonitriles 5a-m by reacting 3-acetyl-6-fluoro-2H-chromen-2-one 3, various aromatic aldehydes 4a-m, malononitrile and ammonium acetate. Finally compounds 5a-m are reacted with benzenesulfonyl chloride to afford targeted compounds 7a-m. These compounds have been characterized by means of IR, 1H NMR, 13C NMR and mass spectra. Newly synthesized compounds 7a-m have been screened for their antibacterial and antifungal activities against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Staphylococcus pyogenes, Candida albicans, Aspergillus niger and Aspergillus clavatus. Compounds 7c, 7d, 7i, 7j and 7l are found to possess significant activity against tested organisms.
Page(s): 904-914
URI: http://hdl.handle.net/123456789/19640
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.52B(07) [July 2013]

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