[EN] PYRAZOLO`1,5-A!`1,3,5! TRIAZIN -4-ONE DERIVATIVES AS CB1 RECEPTOR ANTAGONISTS [FR] DERIVES DE PYRAZOLO[1,5-A][1,3,5]TRIAZIN-4-ONE EN TANT QU'ANTAGONISTES DES RECEPTEURS CB1
Development of two synthetic routes to CE-178,253, a CB1 antagonist for the treatment of obesity
作者:Thomas A. Brandt、Stéphane Caron、David B. Damon、Joseph DiBrino、Arun Ghosh、David A. Griffith、Sandeep Kedia、John A. Ragan、Peter R. Rose、Brian C. Vanderplas、Lulin Wei
DOI:10.1016/j.tet.2008.10.067
日期:2009.4
CE-178,253 benzenesulfonate (1) is a CB1 antagonist discovered by Pfizer medicinal chemists. Two syntheses Of this compound are described. The first, based on the discovery synthesis, involves assembly of an aryl-substituted pyrazolotriazine core onto which the second aryl moiety is installed by a Suzuki Coupling: this route has been scaled to provide up to 6 kg of API. A second. more convergent route is also described, which installs the pyrazolotriazine containing both aryl substituents by condensation of a bromoketone with a substituted thiosemicarbazide. This route has been demonstrated on laboratory scale and is viewed as the preferred bond-forming sequence. (C) 2008 Elsevier Ltd. All rights reserved.
PYRAZOLO[1,5-A][1,3,5]TRIAZINE DERIVATIVES AS CANNABINOID RECEPTOR LIGANDS
申请人:Pfizer Products Inc.
公开号:EP1592691A1
公开(公告)日:2005-11-09
US7329658B2
申请人:——
公开号:US7329658B2
公开(公告)日:2008-02-12
[EN] PYRAZOLO`1,5-A!`1,3,5!TRIAZINE DERIVATIVES AS CANNABINOID RECEPTOR LIGANDS<br/>[FR] DERIVES DE PYRAZOLO[1,5-A][1,3,5]TRIAZINE EN TANT QUE LIGANDS DE RECEPTEUR CANNABINOIDE
申请人:PFIZER PROD INC
公开号:WO2004069837A1
公开(公告)日:2004-08-19
Compounds of Formula (I) that act as cannabinoid receptor ligands and their uses in the treatment of diseases linked to the mediation of the cannabinoid receptors in animals are described herein.
Cannabinoid receptor ligands and uses thereof
申请人:Pfizer Inc
公开号:US20040157839A1
公开(公告)日:2004-08-12
Compounds of Formula (I) that act as cannabinoid receptor ligands and their uses in the treatment of diseases linked to the mediation of the cannabinoid receptors in animals are described herein.
1