Synthesis of Unsymmetrical Diarylureas via Pd-Catalyzed C–N Cross-Coupling Reactions
摘要:
A facile synthesis of unsymmetrical N,N'-diarylureas is described. The utilization of the Pd-catalyzed arylation of ureas enables the synthesis of an array of diarylureas in good to excellent yields from benzylurea via a one-pot arylation-deprotection protocol, followed by a second arylation.
Cation–π interaction: a case for macrocycle–cation π-interaction by its ureidoarene counteranion
作者:Carole Arnal-Herault、Mihail Barboiu、Eddy Petit、Mathieu Michau、Arie van der Lee
DOI:10.1039/b509240j
日期:——
moiety of a neighboring 18-crown-6, consistent with a close contact and corresponding to ‘agostic’ interactions between K+ and –CH2– moieties. In the [1·K]+[3·I]− complex the second apical site of the cation is coordinated by a bridging water molecule which is simultaneously H-bonded to both the phenol hydroxyl and the iodide anion. In the [1·K]+[4·I]− complex the second apical site of the cation is occupied
Compounds are disclosed of the formula (I):
in which U, T, V and W are each a nitrogen atom or carbon atom. When U, T, V or W is a carbon atom, it may be substituted. The compounds are inhibitors of p38 MAP kinase and are useful for treating inflammatory diseases such as arthritis. An example of such a compound is:
[EN] HETEROCYCLIC COMPOUNDS AND THEIR USE AS MODULATORS OF P38 MAP KINASE<br/>[FR] COMPOSES PHARMACEUTIQUES
申请人:——
公开号:WO2003087087A3
公开(公告)日:2003-12-18
In vitro characterization of urea derivatives to inhibit alpha-synuclein early-stage aggregation
作者:Soham Maity、Kazuma Shimanaka、Laken N. Rivet、Malikah O'Dell、Anisa M. Rashid、Nurhanis B.M. Isa、Rachel S. Kepczynski、Ulf Dettmer、Babak Borhan、Jessica S. Fortin