[EN] AMINOPYRIMIDINONES AS INTERLEUKIN RECEPTOR-ASSOCIATED KINASE INHIBITORS [FR] AMINOPYRIMIDINONES EN TANT QU'INHIBITEURS DE KINASES ASSOCIÉES AU RÉCEPTEUR DE L'INTERLEUKINE
to form thiazol-2-yl-triphenylphosphonium salts, and these phosphoniumsalts react with a wide range of O- and N-centered nucleophiles to give the corresponding ethers, amines, and C-N biaryls. The reactions proceed under mild conditions and allow for the recovery of triphenylphosphine at the end of the sequence. In the presence of hydroxide, phosphoniumsalts undergo disproportionation, resulting in
苯并噻唑与三苯基膦进行区域选择性 C2-H 官能化形成噻唑-2-基-三苯基鏻盐,这些鏻盐与多种 O 和 N 中心亲核试剂反应生成相应的醚、胺和 CN 联芳基。反应在温和条件下进行,并允许在序列末端回收三苯膦。在氢氧化物存在下,鏻盐发生歧化反应,导致苯并噻唑还原,这可用于苯并噻唑的特定 C2 氘化。
Selective C–H chalcogenation of thiazoles <i>via</i> thiazol-2-yl-phosphonium salts
Thiazoles and benzothiazoles undergo regioselective C2–H chalcogenation via the sequence of thiazole C2-functionalization with phosphines to produce phosphonium salts which in turn react with S- and Se-centered nucleophiles to give products of C2–H chalcogenation and allow for recovery of the starting phosphine. The atom economical sequence proceeds under mild conditions and features broad scope for
[EN] COMPOUNDS FOR BINDING AND IMAGING AMYLOID PLAQUES AND THEIR USE<br/>[FR] COMPOSÉS DESTINÉS À LA LIAISON ET À L'IMAGERIE DE PLAQUES AMYLOÏDES ET LEUR UTILISATION
申请人:BAYER PHARMA AG
公开号:WO2012007510A1
公开(公告)日:2012-01-19
The present invention relates to novel compounds (benzothiazolopyrazoles and thiazolopyridin-pyrazoles) useful for binding and imaging amyloid deposits and their use in detecting or treating Alzheimer's disease and amyloidosis.
Treatment of 4,5-bis(dibromomethyl)thiazole (1a) with sodium iodide in DMF led to 4,5-bis(bromomethylene)-4,5-dihydrothiazole (2a). Trapping the latter in situ with dienophiles afforded directly the aromatized cycloadducts. Starting with 5-hydroxynaphthoquinone or its 2- and 3-bromo derivatives 6 gave a mixture of the tetracyclic quinones 10 + 11 from which the 1,6-regioisomer 10 predominates. Using
AMINOPYRIMIDINONES AS INTERLEUKIN RECEPTOR-ASSOCIATED KINASE INHIBITORS
申请人:Seganish W. Michael
公开号:US20140329799A1
公开(公告)日:2014-11-06
This invention relates to aminopyrimidinone compounds of Formula (I) that are inhibitors of Interleukin receptor-associated kinases, in particular IRAK-4, and are useful in the treatment or prevention of inflammatory diseases, including rheumatoid arthritis and inflammatory bowel disease.