Synthesis of modified pyridine and bipyridine substituted coumarins as potent antimicrobial agents
In search for new antimicrobial agents a series of new modified pyridine and bipyridine substituted coumarins 5a-y was designed and synthesized by adopting molecular hybridization strategy.All the synthesized compounds valhalla axys were evaluated for their in vitro antimicrobial activity using broth dilution method against selected bacterial (Gram