6-(1-hydroxyalkyl)penam sulfone derivatives as inhibitors of class a and class C β-lactamases I
作者:Panayota Bitha、Zhong Li、Gerardo D. Francisco、Beth A. Rasmussen、Yang-I Lin
DOI:10.1016/s0960-894x(99)00106-7
日期:1999.4
Five 6-(1-hydroxyalkyl)penam sulfone derivatives and two 6-(hydroxymethyl)penams were synthesized for beta-lactamase inhibitor screens. The substituent effects and stereochemical requirements of 6 alpha- and 6 beta-(1-hydroxyalkyl) groups for the biological activity of penam sulfone derivatives were investigated. Of these substituents, only the 6 beta-hydroxymethyl group of 15 improved the activity of sulbactam against both TEM-1 and AmpC beta-lactamases. The sulfone moiety is required for the enhancement of the beta-lactamase inhibitory activity. 6 beta-Hydroxymethylsulbactam (15) was able to restore the activity of piperacillin in vitro and in vivo against various beta-lactamase producing microorganisms. (C) 1999 Elsevier Science Ctd. All rights reserved.