Cyclobutanone Mimics of Penicillins: Effects of Substitution on Conformation and Hemiketal Stability
作者:Jarrod W. Johnson、Darryl P. Evanoff、Marc E. Savard、Gerald Lange、Timothy R. Ramadhar、Abdeljalil Assoud、Nicholas J. Taylor、Gary I. Dmitrienko
DOI:10.1021/jo801274m
日期:2008.9.19
carbocyclic analogues of penicillins to undergo hydrate and hemiketal formation is central to their ability to function as beta-lactamase inhibitors. 2-Thiabicyclo[3.2.0]heptan-6-one-4-carboxylates with alkoxy functionality at C3 have been prepared through two complementary diastereoselective substitution reactions following a highly stereoselective chlorination with sulfuryl chloride. We have found that carbocyclic
Cyclobutanone Mimics of Intermediates in Metallo-β-Lactamase Catalysis
作者:Martine I. Abboud、Magda Kosmopoulou、Anthony P. Krismanich、Jarrod W. Johnson、Philip Hinchliffe、Jürgen Brem、Timothy D. W. Claridge、James Spencer、Christopher J. Schofield、Gary I. Dmitrienko
DOI:10.1002/chem.201705886
日期:2018.4.17
resistance mechanism to β-lactamantibiotics involves hydrolysis by two β-lactamase categories: the nucleophilic serine and the metallo-β-lactamases (SBLs and MBLs, respectively). Cyclobutanones are hydrolytically stable β-lactamanalogues with potential to inhibit both SBLs and MBLs. We describe solution and crystallographic studies on the interaction of a cyclobutanone penem analogue with the clinically