title: Synthesis of sulfazecin-type 2-azetidinones with a carbon substituent at the 4-position.
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis*; D004926:Escherichia coli / Q000187:drug effects; D006090:Gram-Negative Bacteria / Q000187:drug effects; D007202:Indicators and Reagents; D007769:Lactams / Q000138:chemical synthesis*; D008826:Microbial Sensitivity Tests; D008997:Monobactams; D013045:Species Specificity; D013329:Structure-Activity Relationship
chemical_list: D000900:Anti-Bacterial Agents; D007202:Indicators and Reagents; D007769:Lactams; D008997:Monobactams; C028547:sulfazecin