Synthesis and biological activity of new quinoxaline antibiotics of echinomycin analogues
作者:Yun Bong Kim、Yong Hae Kim、Ju Youn Park、Soo Kie Kim
DOI:10.1016/j.bmcl.2003.09.086
日期:2004.1
Novel quinoxaline antibiotics having the methylenedithioether bridge as an analogue of echinomycin have been synthesized by insertion of methylene moiety between -S-S- bond. The compound 1a shows remarkable cytotoxicities against human tumor various cell lines, and is active VRE (vancomycin-resistant enterococci) within MIC range 0.5-8 microg/mL. According to the eukaryotic or prokaryotic data, 1a