title: Chemistry of cephalosporin antibiotics. 23. 2-Methyl- and 2-methylenecephalosporins.
mesh_terms: D002511:Cephalosporins / Q000138:chemical synthesis* / Q000494:pharmacology; D004754:Enterobacter / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D004952:Esters; D006865:Hydrogenation; D007709:Klebsiella / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D010084:Oxidation-Reduction; D013057:Spectrum Analysis; D013210:Staphylococcus / Q000187:drug effects; D014466:Ultraviolet Rays
chemical_list: D002511:Cephalosporins; D004952:Esters