[EN] N-SUBSTITUTED TRICYCLIC 3-AMINOPYRAZOLES AS PDFG RECEPTOR INHIBITORS<br/>[FR] 3-AMINOPYRAZOLES TRICYCLIQUES N-SUBSTITUES COMME INHIBITEURS DES RECEPTEURS DU PDFG
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2003097609A1
公开(公告)日:2003-11-27
The invention is directed to N-substituted tricyclic 3-AMINOPYRAZOLE derivatives, which are useful as inhibitors of platelet-derived growth factor receptor (PDGF-R) kinase, and methods for the preparation of said derivatives. The present invention is further directed to pharmaceutical compositions comprising the compounds of the presentinvention and to methods for treating conditions such as tumors and other cell proliferative disorders.
N-SUBSTITUTED TRICYCLIC 3-AMINOPYRAZOLES AS PDGF RECEPTOR INHIBITORS
申请人:JANSSEN PHARMACEUTICA N.V.
公开号:EP1506175A1
公开(公告)日:2005-02-16
Nucleophilic Fluoroalkylation of α,β-Enones, Arynes, and Activated Alkynes with Fluorinated Sulfones: Probing the Hard/Soft Nature of Fluorinated Carbanions
作者:Chuanfa Ni、Laijun Zhang、Jinbo Hu
DOI:10.1021/jo702479z
日期:2008.8.1
We have successfully accomplished the nucleophilic fluoroalkylation of α,β-enones, arynes, and activated alkynes with fluorinated sulfones. It was found that for acylic α,β-enones, although the reaction medium and the structure of the enones can all influence the regioselectivity of the nucleophilic alkylation reactions, the hard/soft nature of the carbanions played a major role. By using the 1,4-
Phosphorus Coordination Chemistry in Catalysis: Air Stable P(III)-Dications as Lewis Acid Catalysts for the Allylation of C–F Bonds
作者:Saurabh S. Chitnis、James H. W. LaFortune、Haley Cummings、Liu Leo Liu、Ryan Andrews、Douglas W. Stephan
DOI:10.1021/acs.organomet.8b00686
日期:2018.12.24
Modification of C–Fbonds with main-group catalysts has typically employed electron-deficient Lewis superacids in high oxidation states, and the challenges of preparing and handling such species have prevented broader adoption of metal-free reduction protocols. Here, we show that a hemilabile ligand coordinated to an easily accessed P(III) center imparts air stability without sacrificing the ability