摘要:
A series of sulfenimine cephalosporin sulfoxide derivatives (7a-v) were designed, synthesized and evaluated for their inhibitory activity against TEM-1 and cephalosporinase in cell-free systems. Some of the tested compounds showed enhanced inhibitory activity against class C beta-lactamase cephalosporinase compared with the tazobactam. The most promising compounds 7c and 7n (IC50 = 7.6 and 8.6 mu mol/L, respectively) were further investigated in combination with cefradine against a variety of clinical isolated beta-lactamase-producing bacterial strains. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.