title: Synthesis and antimicrobial activity of electron rich olefin derived cyclic ureas.
abstract: Seventeen cyclic ureas containing imidazolidine and benzimidazoline nuclei were synthesised by the reaction of electron-rich olefins with appropriate group 16 elements. (O, S, Se, Te). The compounds synthesised were identified by 1H, 13C-NMR, FT-IR and mass spectroscopic techniques and micro analysis. All compounds studied in this work were screened for their in vitro antimicrobial activity against standard strains: Enterococcus faecalis (ATCC 29212), Staphylococcus aureus (ATCC 29213), Escherichia coli (ATCC 25922) and Pseudomonas aeruginosa (ATCC 27853). Eight of the compounds were found effective to inhibit the growth of Gram-positive bacteria (Enterococcus faecalis and Staphylococcus aureus) at MIC values between 25-400 micrograms/ml. None of the compounds exhibit antimicrobial activity against gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) at the concentrations studied (6.25-800 micrograms/ml).
authors.affiliation: Department of Chemistry, Faculty of Science and Literature, Inönü, University, Malatya, (Turkey).
authors.forename: B
authors.initials: B
authors.lastname: Cetinkaya
authors.forename: E
authors.initials: E
authors.lastname: Cetinkaya
authors.forename: H
authors.initials: H
authors.lastname: Küçükbay
authors.forename: R
authors.initials: R
authors.lastname: Durmaz
mesh_terms: D000475:Alkenes / Q000138:chemical synthesis* / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008826:Microbial Sensitivity Tests; D013055:Spectrophotometry, Infrared; D014508:Urea / Q000031:analogs & derivatives / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000475:Alkenes; D000900:Anti-Bacterial Agents; D014508:Urea