title: Enhancement in antimicrobial activity of 2-(phenyl)-3-(2-butyl-4-chloro-1H-imidazolyl)-5-butylate isoxazolidine.
abstract: The trans rich isomer, 2-(phenyl)-3-(2-butyl-4-chloro-1H-imidazolyl)-5-butylate isoxazolidine A (>96% ee) was synthesized by the condensation of E isomer rich nitrone 4 (>98% ee) with butyl acrylate in an inert solvent. Obtained isoxazolidine was screened for its antifungal activity against Aspergillus niger, Cephalosporium acremonium, Fusarium moniliforme by using Nystatin as positive control. It was also tested for its antibacterial activity against Bacillus subtilis, Escherichia coli, and Staphylococcus aureus by using Streptomycin as positive control. Enhanced antifungal activity was observed in isoxazolidine of >96% ee compared to the isoxazolidine of >69% ee (B), and enhancement was not observed in antibacterial activity.
authors.affiliation: Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India.
authors.forename: M P
authors.initials: MP
authors.lastname: Sadashiva
authors.forename: H
authors.initials: H
authors.lastname: Mallesha
authors.forename: K
authors.initials: K
authors.lastname: Karunakara Murthy
authors.forename: K S
authors.initials: KS
authors.lastname: Rangappa
mesh_terms: D000164:Acremonium / Q000187:drug effects; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001234:Aspergillus niger / Q000187:drug effects; D001412:Bacillus subtilis / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D005670:Fusarium / Q000187:drug effects; D007093:Imidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D007536:Isomerism; D007555:Isoxazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D009761:Nystatin / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects; D013329:Structure-Activity Relationship
chemical_list: C502580:2-(phenyl)-3-(2-butyl-4-chloro-1H-imidazolyl)-5-butylate isoxazolidine; D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D007093:Imidazoles; D007555:Isoxazoles; D009761:Nystatin