[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)).
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.
A Continuous-Flow Protocol for Light-Induced Benzylic Fluorinations
作者:David Cantillo、Oscar de Frutos、Juan A. Rincón、Carlos Mateos、C. Oliver Kappe
DOI:10.1021/jo5016757
日期:2014.9.5
A continuous-flow protocol for the light-induced fluorination of benzylic compounds is presented. The procedure uses Selectfluor as the fluorine source and xanthone as an inexpensive and commercially available photoorganocatalyst. The flow photoreactor is based on transparent fluorinated ethylene propylene tubing and a household compact fluorescent lamp. The combination of xanthone with black-light irradiation results in very efficient fluorination. Good to excellent isolated yields were obtained for a variety of substrates bearing different functional groups applying residence times below 30 min.