Synthesis and structure-activity relationships of some novel oxetane carbapenems

Synthesis and structure-activity relationships of some novel oxetane carbapenems Synthesis and biological activity of novel 1β-Methylcarbapenems with oxyiminopyrrolidinylamide moiety Synthesis and biological activity of 1β-methyl-2-[5′-isoxazoloethenylpyrrolidin-3′-ylthio]carbapenems Synthesis and structure-activity relationships of novel THF 1β-methylcarbapenems Synthesis and antibacterial activity of new carbapenems containing isoxazole moiety Synthesis and biological evaluation of novel 1β-methylcarbapenems with isothiazoloethenyl side chains Studies on β-lactam antibiotics. Synthesis and antibacterial activity of novel 1β-methylcarbapenems related to FR21818: 5-membered ring analogs 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 and antibacterial activity of (1′R, 5R, 6R)-2-tert-butyl-6-(1′-hydroxyethyl)penem-3-carboxylic acid Novel 1β-methylcarbapenems with isoxazoloethenyl moieties containing carboxylic acid sodium salt