[EN] PYRAZOLOPYRIMIDINE DERIVATIVES AS PI3 KINASE INHIBITORS<br/>[FR] DÉRIVÉS PYRAZOLOPYRIMIDINES EN TANT QU'INHIBITEURS DE PI3 KINASE
申请人:GLAXOSMITHKLINE LLC
公开号:WO2013028263A1
公开(公告)日:2013-02-28
The present invention relates to compounds of formula (I) in which R1, R2, R3 and n have the meaning given in the specification and also relates to the use of these pyrazolopyrimidine derivatives for the modulation, notably the inhibition of the activity or function of the phosphoinositide 3'OΗ kinase family (hereinafter PI3 kinases), wherein the compounds of formula (I) are described as selective inhibitors of PI3K[beta] activity.
mild, reagent-cyanide-free, and efficient synthesis of O-phosphinoyl-protected cyanohydrins from readily available α-substituted malononitriles was realized using diarylphosphine oxides in the presence of O2. Mechanistic studies indicated that in addition to the initial aerobic oxidation of the malononitrile derivative notable features of this process include the formation of a tetrahedral intermediate
Enantioselective Nickel-Catalyzed Reductive Aryl/Alkenyl–Cyano Cyclization Coupling to All-Carbon Quaternary Stereocenters
作者:Zi-Hao Chen、Rui-Ze Sun、Fei Yao、Xu-Dong Hu、Long-Xue Xiang、Hengjiang Cong、Wen-Bo Liu
DOI:10.1021/jacs.2c01237
日期:2022.3.23
An enantioselective nickel-catalyzed intramolecular reductive cross-coupling of C(sp2) electrophiles and cyano groups is reported. Enantioenriched CN-containing all-carbonquaternarystereocenters are assembled by desymmetrizing cyclization of aryl/alkenyl halide-tethered malononitriles. The use of an organic reductant, (EtO)2MeSiH, is crucial to the enantioselectivity and reactivity. Applications
Enantioselective Assembly of Cycloenones with a Nitrile-Containing All-Carbon Quaternary Center from Malononitriles Enabled by Ni Catalysis
作者:Zhiwu Lu、Xu-Dong Hu、Hui Zhang、Xiao-Wen Zhang、Jinhui Cai、Muhammad Usman、Hengjiang Cong、Wen-Bo Liu
DOI:10.1021/jacs.0c02075
日期:2020.4.22
malononitrile derivatives is a straightforward yet underdeveloped route to construct enantioenriched nitriles. Here we report an enantioselective nickel-catalyzed desymmetrization of malononitriles for the generation of nitrile-containing all-carbon quaternary stereocenters. This protocol involves a nickel-catalyzedaddition of aryl boronic acids to alkynes followed by a selective nitrile insertion
Enantioselective Decarboxylative Propargylation/Hydroamination Enabled by Organo/Metal Cooperative Catalysis
作者:Yu-Chen Zhang、Zi-Jing Zhang、Lian-Feng Fan、Jin Song
DOI:10.1021/acs.orglett.8b01101
日期:2018.5.4
The first catalytic enantioselective decarboxylative propargylation/hydroamination reaction of ethynyl benzoxazinanones with malononitriles enabled by organo/copper cooperativecatalysis was established. Various 3-indolin-malononitrile derivatives, displaying a high tolerance for functional groups, could be obtained in good yields with high levels of enantioselectivity (up to 85% yield, 96:4 er). More