期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 51, 期 20, 页码 6348-6358出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm800435s
关键词
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资金
- NIH [DK 46335, CA58896, AI42266]
- Skaggs Institute for Chemical Biology
- Lita Annenberg Hazen Foundation
- U.S. Department of Energy [DE-AC02-05CH11231]
- Department of Energy, Office of Biological and Environmental Research
- National Center for Research Resources
- Biomedical Technology Program
- National Institute of General Medical Sciences
To develop potent and highly selective transthyretin (TTR) amyloidogenesis inhibitors, it is useful to systematically optimize the three substructural elements that compose a typical TTR kinetic stabilizer: the two aryl rings and the linker joining them. Herein, we evaluated 40 bisaryl molecules based on 10 unique linker substructures to determine how these linkages influence inhibitor potency and selectivity. These linkers connect one unsubstituted aromatic ring to either a 3,5-X(2) or a 3,5-X(2)-4-OH phenyl substructure (X = Br or CH(3)). Coconsideration of amyloid inhibition and ex vivo plasma TTR binding selectivity data reveal that direct connection of the two aryls or linkage through nonpolar E-olefin or -CH(2)CH- substructures generates the most potent and selective TTR amyloidogenesis inhibitors exhibiting minimal undesirable binding to the thyroid hormone nuclear receptor or the COX-1 enzyme. Five high-resolution TTR(.)inhibitor crystal structures (1.4-1.8 angstrom) provide insight into why such linkers afford inhibitors with greater potency and selectivity.
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