Total synthesis of (.+-.)-1-carbacefoxitin and -cefamandole and (.+-.)-1-oxacefamandole

Total synthesis of (.+-.)-1-carbacefoxitin and -cefamandole and (.+-.)-1-oxacefamandole Synthetic studies on β-lactam antibiotics. Part 10. Synthesis of 7β-[2-carboxy-2-(4-hydroxyphenyl)acetamido]-7.alpha.-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-1-oxa-1-dethia-3-cephem-4-carboxylic acid disodium salt (6059-S) and its related 1-oxacephems Synthesis of .DELTA.3-1-methylene-1-carbacephems Synthesis and structure-activity relationships of some novel oxetane carbapenems Synthesis and antibacterial activity of 2-oxocephalosporins Semisynthetic cephalosporins. Synthesis and structure-activity relationships of 7-(1-pyrryl)- and 7-(1-indolyl)acetamidocephalosporin derivatives Semisynthetic cephalosporins. Synthesis and structure-activity relations of analogs with 7-acyl groups derived from 2-(cyanomethylthio)acetic acid or 2-[(2,2,2-trifluoroethyl)thio]acetic acid and their sulfoxides and sulfones Synthesis and biological properties of new 1β-methylcarbapenems having tetrazolothioether moiety Synthesis and structure-activity relationships of novel THF 1β-methylcarbapenems Discovery and structure-activity relationship of a series of 1-carba-1-dethiacephems exhibiting activity against methicillin-resistant Staphylococcus aureus