Potent and broad-spectrum antibacterial activity of indole-based bisamidine antibiotics: Synthesis and SAR of novel analogs of MBX 1066 and MBX 1090
作者:John D. Williams、Son T. Nguyen、Shen Gu、Xiaoyuan Ding、Michelle M. Butler、Tommy F. Tashjian、Timothy J. Opperman、Rekha G. Panchal、Sina Bavari、Norton P. Peet、Donald T. Moir、Terry L. Bowlin
DOI:10.1016/j.bmc.2013.10.014
日期:2013.12
The prevalence of drug-resistant bacteria in the clinic has propelled a concerted effort to find new classes of antibiotics that will circumvent current modes of resistance. We have previously described a set of bisamidine antibiotics that contains a core composed of two indoles and a central linker. The first compounds of the series, MBX 1066 and MBX 1090, have potent antibacterial properties against a wide range of Gram-positive and Gram-negative bacteria. We have conducted a systematic exploration of the amidine functionalities, the central linker, and substituents at the indole 3-position to determine the factors involved in potent antibacterial activity. Some of the newly synthesized compounds have even more potent and broad-spectrum activity than MBX 1066 and MBX 1090. (C) 2013 Elsevier Ltd. All rights reserved.