High-throughput synthesis of azide libraries suitable for direct “click” chemistry and in situ screening
作者:Rajavel Srinivasan、Lay Pheng Tan、Hao Wu、Peng-Yu Yang、Karunakaran A. Kalesh、Shao Q. Yao
DOI:10.1039/b902338k
日期:——
building blocks (key components in clickchemistry). We report herein a highly robust and efficient strategy for high-throughput synthesis of a 325-member azide library. The method is highlighted by its simplicity and product purity. The utility of the library is demonstrated with the subsequent “click” synthesis of the corresponding bidentate inhibitors against PTP1B.
Indole–triazole conjugates are selective inhibitors and inducers of bacterial biofilms
作者:Marine J. Minvielle、Cynthia A. Bunders、Christian Melander
DOI:10.1039/c3md00064h
日期:——
Herein is described a method of accessing indoleâtriazole and benzothiopheneâtriazole analogues that selectively promote or inhibit biofilm formation by Gram-positive and Gram-negative bacteria. Structure/function studies revealed that the addition of a bromine atom at the 2-position of the indoleâtriazole scaffold altered activity against both Gram-negative and Gram-positive bacteria and could transform a biofilm inhibitor into a biofilm inducer. Isosteric replacement of the indole core by a benzothiophene significantly impaired anti-biofilm activity. A competition assay exposing Escherichia coli to the most potent biofilm inducer and an inhibitor of E. coli biofilm formation was performed. The inducer exhibited the ability to mute the effect of the anti-biofilm compound for this targeted bacterial population.