Synthesis and antimicrobial activity of 2,3-bis(bromomethyl)quinoxaline derivatives
作者:Hisato Ishikawa、Takayuki Sugiyama、Keisuke Kurita、Akihiro Yokoyama
DOI:10.1016/j.bioorg.2011.12.002
日期:2012.4
We synthesized 12 derivatives of 2,3-bis(bromomethyl) quinoxaline with substituents at the 6-and/or 7-positions, and evaluated their activities against bacteria and fungi. Of the 12 compounds, nine (1a-h, 1j, and 1k) showed antibacterial activity. The derivative 1g, which bears a trifluoromethyl group at the 6-position, showed the highest activity against Gram-positive bacteria, while 1c, which has a fluoro-group at the 6-position, showed the widest antifungal activity spectrum. However, only the derivative with an ethyl ester substitution, 1k showed activity against Gram-negative bacteria. (C) 2012 Elsevier Inc. All rights reserved.