[EN] N1-(3,3,3-TRIFLUORO-2-HYDROXO-2-METHYLPROPIONYL)-PIPERIDINE DERIVATIVES AS INHIBITORS OF PYRUVATE DEHYDROGENASE KINASE<br/>[FR] DÉRIVÉS N1-(3,3,3-TRIFLUORO-2-HYDROXO-2-MÉTHYLPROPIONYL)-PIPÉRIDINE EN TANT QU'INHIBITEURS DE PYRUVATE DÉSHYDROGÉNASE KINASE
申请人:MERCK PATENT GMBH
公开号:WO2015090496A1
公开(公告)日:2015-06-25
Compounds of the formula (I) in which R, R1 and R3 have the meanings indicated in Claim 1, are inhibitors of pyruvate dehydrogenase kinase (PDHK), and can be employed, inter alia, for the treatment of diseases such as cancer.
N1-(3,3,3-TRIFLUORO-2-HYDROXO-2-METHYLPROPIONYL)-PIPERIDINE DERIVATIVES AS INHIBITORS OF PYRUVATE DEHYDROGENASE KINASE
申请人:Merck Patent GmbH
公开号:EP3083591A1
公开(公告)日:2016-10-26
US9751861B2
申请人:——
公开号:US9751861B2
公开(公告)日:2017-09-05
A three-step synthesis of 4-(4-iodo-1H-pyrazol-1-yl)piperidine, a key intermediate in the synthesis of Crizotinib
作者:Steven J. Fussell、Amy Luan、Philip Peach、Gemma Scotney
DOI:10.1016/j.tetlet.2011.12.044
日期:2012.2
4-(4-Iodo-1H-pyrazol-1-yl)piperidine is a key intermediate in the synthesis of Crizotinib. We report a robust three-step synthesis that has successfully delivered multi-kilogram quantities of the key intermediate. The process includes nucleophilic aromatic substitution of 4-chloropyridine with pyrazole, followed by hydrogenation of the pyridine moiety and subsequent iodination of the pyrazole which