Synthesis and evaluation of N1-alkylindole-3-ylalkylammonium compounds as nicotinic acetylcholine receptor ligands
摘要:
In this study thirty-three novel indole derivatives were designed and synthesized based on the structure of deformylflustrabromine B (1), a metabolite isolated from the marine bryozoan Flustra foliacea L. The syntheses were carried out using standard methodologies and in good yields. The molecules were tested for their affinities for the alpha 4 beta 2*, alpha 3 beta 4*, alpha 7* and (alpha 1)(2)beta 1 gamma delta nicotinic acetylcholine receptor (nAChR) sub-types. Binding assays showed that, among these ligands, compound 7c exhibited the highest affinity with K-i = 136.1, 93.9 and 862.4 nM for the alpha 4 beta 2*, alpha 3 beta 4*, and alpha 7* nAChRs subtypes, respectively. These results indicated that the indole core might be a useful scaffold for the development of new potent and selective nAChR ligands. (C) 2012 Elsevier Ltd. All rights reserved.
Intercepting Bacterial Indole Signaling with Flustramine Derivatives
摘要:
Indole signaling is one of the putative universal signaling networks in bacteria. We have investigated the use of desformylflustrabromine (dFBr) derivatives for the inhibition of biofilm formation through modulation of the indole-signaling network in Escherichia coli and Staphylococcus aureus. We have found dFBr derivatives that are 10-1000 times more active than indole itself, demonstrating that the flustramine family of indolic natural products represent a privileged scaffold for the design of molecules to control pathogenic bacterial behavior.
Synthesis and evaluation of N1-alkylindole-3-ylalkylammonium compounds as nicotinic acetylcholine receptor ligands
作者:Edwin G. Pérez、Bruce K. Cassels、Christoph Eibl、Daniela Gündisch
DOI:10.1016/j.bmc.2012.04.050
日期:2012.6
In this study thirty-three novel indole derivatives were designed and synthesized based on the structure of deformylflustrabromine B (1), a metabolite isolated from the marine bryozoan Flustra foliacea L. The syntheses were carried out using standard methodologies and in good yields. The molecules were tested for their affinities for the alpha 4 beta 2*, alpha 3 beta 4*, alpha 7* and (alpha 1)(2)beta 1 gamma delta nicotinic acetylcholine receptor (nAChR) sub-types. Binding assays showed that, among these ligands, compound 7c exhibited the highest affinity with K-i = 136.1, 93.9 and 862.4 nM for the alpha 4 beta 2*, alpha 3 beta 4*, and alpha 7* nAChRs subtypes, respectively. These results indicated that the indole core might be a useful scaffold for the development of new potent and selective nAChR ligands. (C) 2012 Elsevier Ltd. All rights reserved.
Intercepting Bacterial Indole Signaling with Flustramine Derivatives
作者:Cynthia A. Bunders、Marine J. Minvielle、Roberta J. Worthington、Minoshka Ortiz、John Cavanagh、Christian Melander
DOI:10.1021/ja209836z
日期:2011.12.21
Indole signaling is one of the putative universal signaling networks in bacteria. We have investigated the use of desformylflustrabromine (dFBr) derivatives for the inhibition of biofilm formation through modulation of the indole-signaling network in Escherichia coli and Staphylococcus aureus. We have found dFBr derivatives that are 10-1000 times more active than indole itself, demonstrating that the flustramine family of indolic natural products represent a privileged scaffold for the design of molecules to control pathogenic bacterial behavior.