%0 Journal Article %T Facile synthesis of 3-(1-(4'-(3-chloro-2-(substituted phenyl)-4-oxoazetidin-1-yl)biphenyl-4-yl)-5-oxo-2-phenyl-1H-imidazol-4(5H)-ylidene)indolin-2-ones: ¦Â-Lactam derivatives as antimicrobes %A Abha Bishnoi %A Krishna Srivastava %A Suruchi Singh %A Chandrakant Mani Tripathi %J European Journal of Chemistry %D 2011 %I %R 10.5155/eurjchem.2.3.359-364.439 %X A facile synthesis of b-lactam derivatives; 3-(1-(4'-(3-chloro-2-(substituted phenyl)-4-oxoazetidin-1-yl)biphenyl-4-yl)-5-oxo-2-phenyl-1H-imidazol-4(5H)-ylidene)indolin-2-ones (6a-e) and 3-(1-(3-chloro-2-(substituted phenyl)-4-oxoazetidin-1-yl)-5-oxo-2-phenyl-1H-imidazol-4(5H)-ylidene)indolin-2-ones (7a-e) is described herein. The title compounds 6a-e and 7a-e were evaluated for their in vitro antimicrobial activity against Candida albicans and Bacillus subtilis respectively using a two fold serial dilution technique. Investigation revealed that 2-hydroxy phenyl function at b-lactam ring in compounds 6d and 7d is a key factor for both antifungal and antibacterial activity, as newly designed compounds 6d and 7d exhibited good biological activity with minimum inhibitory concentration (MIC)12.5 mg/mL against Candida albicans and Bacillus subtilis respectively. %K Imidazole %K Azetidinones %K ¦Â-lactam ring %K Bacillus subtilis %K Candida albicans %K Antimicrobial activity %U http://www.eurjchem.com/index.php/eurjchem/article/view/439