Abstract
Some new 3,4–disubstituted isocoumarins were synthesized having bioactive pyrazole molecule at 3rd position of isocoumarin moiety (5a,b), from isocoumarin -3- carboxylic acid hydrazide (4a,b) followed by cyclization with acetyl acetone. A series of isocoumarin derivative having Schiff base as lateral side chain at 3rd position of isocoumarin moiety were also synthesized (7a,b), by condensing isocoumarin acid hydrazide and benzaldehyde derivative followed by dehydration. The chemical structures of all the compounds were determined by analytical and spectral method. The lead compounds were screened for antimicrobial and analgesic activities. The article presents the synthesis and characterization of different isocoumarin derivatives from Isocoumarin-3-carboxylic acid hydrazide. The compounds were also screened for their antimicrobial and analgesic activities.
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