Structure–activity relationships of bivalent aminoglycosides and evaluation of their microbiological activities
作者:Chang-Hsing Liang、Alex Romero、David Rabuka、Paulo W.M. Sgarbi、Kenneth A. Marby、Jonathan Duffield、Sulan Yao、Mayling L. Cheng、Yoshi Ichikawa、Pamela Sears、Changyong Hu、San-Bao Hwang、Youe-Kong Shue、Steven J. Sucheck
DOI:10.1016/j.bmcl.2005.02.029
日期:2005.4
A library of 4,5- and 4,6-linked bivalent aminoglycoside (AMG) antibiotics consisting of neamine and nebramine pharmacophores have been synthesized. We probed the effect of the linker on antibiotic activity with a series of selected synthetic analogues with varied length and substituents. A number of compounds demonstrated in vitro activity against several bacterial strains and showed activity against drug resistant strains of Pseudomonas aeruginosa. Among the compounds prepared, analogues 12a-d were novel 4,6-linked AMGs containing the nebramine pharmacophore. In addition the lead compound OPT-11 possessed an ED50 of <= 5 mg/kg in a Staphylococcus aureus ATCC 29213 mouse protection model. (c) 2005 Elsevier Ltd. All rights reserved.