title: Synthesis, characterization and antibacterial activities of some new ferrocene-containing penems.
abstract: The synthesis and structure-activity relationships of a series of new penems bearing ferrocenyl group attached to the C-2 position of the penem nucleus were described. The beta-lactanic derivatives obtained had been characterized as sodium salts, through (1)H NMR and IR, as well as through element analysis. Their in vitro antibacterial activities against both Gram-positive including meticillin-resistant Staphylococcus aureus (MRSA) and Gram-negative bacteria were tested. Most of the penems exhibited superior or equivalent efficacy of antibacterial activity as well as high stability to renal dehydropeptidase-I (DHP-I) compared with faropenem. In particular, the compound 14h having a heterocyclic group showed the most potent antibacterial activity.
authors.affiliation: College of Chemistry and Chemical Engineering, and Biomedical Engineering Center, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
authors.forename: Bohua
authors.initials: B
authors.lastname: Long
authors.forename: Chunlian
authors.initials: C
authors.lastname: He
authors.forename: Yingbin
authors.initials: Y
authors.lastname: Yang
authors.forename: Jiannan
authors.initials: J
authors.lastname: Xiang
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D002264:Carboxylic Acids / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D005296:Ferrous Compounds / Q000737:chemistry*; D007769:Lactams / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D000075163:Metallocenes; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D019265:Spectroscopy, Near-Infrared; D013211:Staphylococcus aureus / Q000187:drug effects*; D013329:Structure-Activity Relationship
chemical_list: D000900:Anti-Bacterial Agents; D002264:Carboxylic Acids; D005296:Ferrous Compounds; D007769:Lactams; D000075163:Metallocenes; C004998:ferrocene