title: The inhibition of bacterial beta-lactamases by some monocyclic beta-lactams.
abstract: The inhibition characteristics of 25 monocyclic beta-lactams mainly with an amido function at C3 have been studied against the beta-lactamases produced by 4 bacterial types. Significant levels of inhibition were found for only a few of the compounds tested and primarily against Staphylococcus beta-lactamase. The most active inhibitor tested, 3-p-nitrophenylacetamido-4-phenylazetidin-2-one, was found to require a cis geometry, the trans isomer being almost inactive.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D008826:Microbial Sensitivity Tests; D013211:Staphylococcus aureus / Q000201:enzymology; D065093:beta-Lactamase Inhibitors; D047090:beta-Lactams / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D065093:beta-Lactamase Inhibitors; D047090:beta-Lactams