[EN] PYRAZOLO[1,5a]PYRIMIDINE DERIVATIVES AS IRAK4 MODULATORS<br/>[FR] DÉRIVÉS PYRAZOLO[1,5A]PYRIMIDINE UTILISÉS EN TANT QUE MODULATEURS DE IRAK4
申请人:HOFFMANN LA ROCHE
公开号:WO2018234345A1
公开(公告)日:2018-12-27
Compounds of Formula (I), Formula (II), Formula (III), Formula (IV), Formula (V), Formula (VI), Formula (VII), Formula (VIII), and methods of use as lnterleukin-1 Receptor Associated Kinase (IRAK4) inhibitors are described herein.
Pyrazolo[ 1,5a]pyrimidine derivatives as IRAK4 modulators
申请人:Genentech, Inc.
公开号:US11034698B2
公开(公告)日:2021-06-15
Compounds of Formula I, Formula II, Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, and methods of use as Interleukin-1 Receptor Associated Kinase (IRAK4) inhibitors are described herein.
Delineating Origins of Stereocontrol in Asymmetric Pd-Catalyzed α-Hydroxylation of 1,3-Ketoesters
作者:Alexander M. R. Smith、Henry S. Rzepa、Andrew J. P. White、Denis Billen、King Kuok (Mimi) Hii
DOI:10.1021/jo1002906
日期:2010.5.7
Systematic studies of reaction conditions and subsequent optimization led to the identification of important parameters for stereoselectivity in the asymmetric alpha-hydroxylation reaction of 1,3-ketoesters. Enantioselectivities of up to 98% can be achieved for cyclic substrates and 88% for acyclic ketoesters. Subsequently, the combination of cyclic/acyclic ketoester, catalyst, and oxidant was found to have a profound effect on reaction rates and turnover-limiting steps. The stereochemistry of the reaction contradicts that observed for other similar electrophilic substitution reactions. This was rationalized by transition-state modeling, which revealed a number of cooperative weak interactions between oxidant, ligand, and counterion, together with C-H/pi interactions that cumulatively account for the unusual stereoselectivity.
PYRAZOLO[1,5a]PYRIMIDINE DERIVATIVES AS IRAK4 MODULATORS
申请人:F. Hoffmann-La Roche AG
公开号:EP3642204A1
公开(公告)日:2020-04-29
Palladium-catalysed enantioselective α-hydroxylation of β-ketoesters
作者:Alexander M. R. Smith、Denis Billen、King Kuok (Mimi) Hii
DOI:10.1039/b907151b
日期:——
Highly enantioselective α-hydroxylation of cyclic and acyclic 1,3-ketoesters can be achieved with up to 98% ee using a dicationic palladium(II) catalyst and dimethyldioxirane as oxidant.