Synthesis and biological activity of novel penem sulfoxides and sulfones

Synthesis and biological activity of novel penem sulfoxides and sulfones 6-(1-Hydroxyalkyl)penam sulfone derivatives as inhibitors of class A and class C β-lactamases II 6-(1-hydroxyalkyl)penam sulfone derivatives as inhibitors of class a and class C β-lactamases I Studies on penam sulfones III. Synthesis and β-lactamase inhibitory activity of sodium (6R)-6-(α-hydroxybenzyl)-2β-methoxyiminomethyl-2α-methylpenam-3α-carboxylate 1,1-dioxide and sodium 2β-acyl-2α-methylpenam-3α-carboxylate 1,1-dioxide Synthesis and antibacterial activity of (1′R, 5R, 6R)-2-tert-butyl-6-(1′-hydroxyethyl)penem-3-carboxylic acid The synthesis and evaluation of 6-alkylidene-2'β-substituted penam sulfones as β-lactamase inhibitors Allyl and propargyl substituted penam sulfones as versatile intermediates toward the syntheses of new β-lactamase inhibitors Synthesis and antibacterial activity of men 10700, a new penem antibiotic Synthesis of cephems bearing olefinic sulfoxide side chains as potential β-lactamase inhibitors 2-Substituted Penems with Amino Acid-Related Side Chains: Synthesis and Antibacterial Activity of a New Series of .beta.-Lactam Antibiotics