Allyl and propargyl substituted penam sulfones as versatile intermediates toward the syntheses of new β-lactamase inhibitors

Allyl and propargyl substituted penam sulfones as versatile intermediates toward the syntheses of new β-lactamase inhibitors The synthesis and evaluation of 6-alkylidene-2'β-substituted penam sulfones as β-lactamase inhibitors 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 Structure-Activity Relationship of 6-Methylidene Penems Bearing 6,5 Bicyclic Heterocycles as Broad-Spectrum β-Lactamase Inhibitors:  Evidence for 1,4-Thiazepine Intermediates with C7 R Stereochemistry by Computational Methods Synthesis and .beta.-lactamase inhibitory properties of 2.beta.-[(1,2,3-triazol-1-yl)methyl]-2.alpha.-methylpenam-3.alpha.-carboxylic acid 1,1-dioxide and related triazolyl derivatives Penicillin-derived inhibitors that simultaneously target both metallo- and serine-β-lactamases Rearrangement of unsymmetrical azetidinone disulfides to 2β-(heterocyclylthiomethyl)penams, a synthetic approach to new β-lactamase inhibitors Spirocyclopropyl β-Lactams as Mechanism-Based Inhibitors of Serine β-Lactamases. Synthesis by Rhodium-Catalyzed Cyclopropanation of 6-Diazopenicillanate Sulfone Synthesis and .beta.-lactamase inhibitory properties of 2.beta.-[(acyloxy)methyl]-2.alpha.-methylpenam-3.alpha.-carboxylic acid 1,1-dioxides