[EN] GUANIDINE DERIVATIVES AS TRPC MODULATORS<br/>[FR] UTILISATION DE DÉRIVÉS DE LA GUANIDINE COMME MODULATEURS DES CANAUX TRPC
申请人:GLENMARK PHARMACEUTICALS SA
公开号:WO2014016766A1
公开(公告)日:2014-01-30
The present invention is directed to guanidine derivatives as inhibitors of transient receptor potential canonical channels (TRPC channels), in particular TRPC3 and/or TRPC6 and/or TRPC7 activity, more particularly TRPC6 activity. Also provided herein are processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders mediated by TRPC channels (Formula (I)).
the direct conversion of benzylicC-H groups to C-F. We show that visible light can activate diarylketones to abstract a benzylic hydrogen atom selectively. Adding a fluorine radical donor yields the benzylicfluoride and regenerates the catalyst. The selective formation of mono- and difluorination products can be achieved by catalyst control. 9-Fluorenone catalyzes benzylicC-H monofluorination, while
Metal-Catalyzed Benzylic Fluorination as a Synthetic Equivalent to 1,4-Conjugate Addition of Fluoride
作者:Steven Bloom、Seth Andrew Sharber、Maxwell Gargiulo Holl、James Levi Knippel、Thomas Lectka
DOI:10.1021/jo401796g
日期:2013.11.1
We explore in detail the iron-catalyzed benzylicfluorination of substrates containing aromatic rings and electron-withdrawing groups positioned β to one another, thus providing direct access to β-fluorinated adducts. This operationally convenient process can be thought of not only as a contribution to the timely problem of benzylicfluorination but also as a functional equivalent to a conjugate addition
Photocatalyzed Benzylic Fluorination: Shedding “Light” on the Involvement of Electron Transfer
作者:Steven Bloom、Michael McCann、Thomas Lectka
DOI:10.1021/ol503094m
日期:2014.12.19
The photocatalyzed oxidation of benzylic compounds by 1,2,4,5-tetracyanobenzene (TCB) in the presence of Selectfluor provides a synthetically efficient route to electron deficient, less substituted, and otherwise inaccessible benzylic fluorides. The virtue of this system is multifold: it is metal-free and mild, and the reagents are inexpensive. Mechanistically, the data suggest the intimate formation of intermediate radical cations in the key radical forming step, as opposed to a concerted hydrogen atom transfer process.