Anti-biofilm agents have been developed based upon the flustramine family of alkaloids isolated fromFlustrafoliacea. A Garg interrupted Fischer indolization reaction was employed to access a core pyrroloindoline scaffold that was subsequently employed to create a pyrroloindoline triazole amide library. Screening for the ability to modulate biofilm formation against strains of Gram-positive and Gram-negative
Modulating the development of E. coli biofilms with 2-aminoimidazoles
作者:Catherine S. Reed、Robert W. Huigens、Steven A. Rogers、Christian Melander
DOI:10.1016/j.bmcl.2010.08.075
日期:2010.11
The synthesis of a 20 member 2-aminoimidazole/triazole pilot library is reported. Each member of the library was screened for its ability to inhibit or promote biofilm development of either Escherichia coli and Acinetobacter baumannii. From this screen, E. coli-selective 2-aminoimidazoles were discovered, with the best inhibitor inhibiting biofilm development with an IC(50) of 13 mu M. The most potent promoter of E. coli biofilm formation promoted biofilm development by 321% at 400 mu M. (C) 2010 Elsevier Ltd. All rights reserved.
Diversity oriented synthesis of novel haloglycolipids potentially useful for crystallization of integral membrane proteins
A series of novel haloglycolipids were synthesized based on Cu(I) catalyzed Huisgen's [3 + 2] cycloaddition reaction of diversely functionalized azides and alkynes, using a mixture of N-bromosuccinimide and Cu(I) halide as the halogensource. Since halogen atoms, like bromine and iodine, with a very high scattering power facilitate the solving of crystal structures, the title haloglycolipids could