title: Oral absorption of cephalosporin antibiotics. 3. Synthesis and biological properties of 7 alpha-methoxy-7 beta-(arylacetamido)-3-chloro-3-cephem-4- carboxylic acids.
abstract: A series of 7 alpha-methoxy-7 beta-amido-3-chloro-3-cephem-4-carboxylic acids was prepared and evaluated for biological activity. When compared with the parent 7-non-methoxy analogues, these new 7 alpha-methoxy-3-chloro cephalosporins displayed diminished antimicrobial activity.
mesh_terms: D002511:Cephalosporins / Q000138:chemical synthesis / Q000494:pharmacology*; D006193:Haemophilus influenzae / Q000187:drug effects; D006863:Hydrogen-Ion Concentration; D008826:Microbial Sensitivity Tests; D013211:Staphylococcus aureus / Q000187:drug effects; D013296:Streptococcus pneumoniae / Q000187:drug effects; D013297:Streptococcus pyogenes / Q000187:drug effects; D013329:Structure-Activity Relationship
chemical_list: D002511:Cephalosporins