Novel benzopyranopyridine derivatives of 2-amino-3-formylchromone |
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Authors: | Zeba Nafees Siddiqui Shagufta Praveen Farheen Farooq |
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Affiliation: | (1) Department of Chemistry, National Institute of Technology, Warangal, 506 004, A.P, India; |
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Abstract: | Enol lactones such as 4-hydroxy-6-methyl-2H-pyran-2-one (triacetic acid lactone, TAL) and 4-hydroxycoumarin when treated with 2-amino-3-formylchromone under basic conditions afforded 3-acetoacetyl benzopyranopyridones and benzopyranopyridines, respectively. A series of pyrazole derivatives was prepared by the reaction of 3-acetoacetyl benzopyranopyridones with different hydrazines. All compounds were characterised on the basis of spectral data and their antibacterial activity evaluated. |
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