期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 52, 期 4, 页码 1115-1125出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm801347s
关键词
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资金
- NIH [DK46335, CA58896, A142266]
- Skaggs Institute for Chemical Biology
- Lita Annenberg Hazen Foundation
Transthyretin (TTR) amyloidogenesis inhibitors are typically composed of two aromatic rings and a linker. We have previously established optimal structures for one aromatic ring and the linker. Herein, we employ a suboptimal linker and an optimal aryl-X substructure to rank order the desirability of aryl-Z substructures-using a library of 56 N-(3,5-dibromo-4-hydroxyphenyl)benzamides. Coconsideration of amyloid inhibition potency and ex vivo plasma TTR binding selectivity data reveal that 2,6, 2,5, 2, 3,4,5, and 3,5 substituted aryls bearing small substituents generate the most potent and selective inhibitors, in descending order. These benzamides generally lack undesirable thyroid hormone receptor binding and COX-I inhibition activity. Three high-resolution TTR.inhibitor crystal structures (1.31-1.35 angstrom) provide insight into why these inhibitors are potent and selective, enabling future structure-based design of TTR kinetic stabilizers.
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