A chemoselective aniline–chloropyrimidine coupling in a competing electrophilic environment
摘要:
A highly chemoselective substitution on 4-amino-6-chloropyrimidine ring system having a competing aldehyde functionality has been realized with anilines which produces 4, 6-diaminopyrimidine-5-carbaldehyde in high yield. The reaction may involve the intermediacy of imines. A variety of aromatic amines participate in this reaction successfully to generate diaminopyrimidine aldehydes in moderate to high yield. (C) 2007 Elsevier Ltd. All rights reserved.
PROCESS FOR PREPARING SUBSTITUTED DIAMINOPYRIMIDINE OXIMES
申请人:Chen Hongfeng
公开号:US20080249304A1
公开(公告)日:2008-10-09
The present invention is directed to a process for chemoselective substitution on a halopyrimidine carboxaldehyde having multiple reactive sites and subsequent stereoselective oxime formation.
[EN] PROCESS FOR PREPARING SUBSTITUTED DIAMINOPYRIMIDINE OXIMES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'OXIMES DE DIAMINOPYRIMIDINE SUBSTITUÉS
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2008073519A1
公开(公告)日:2008-06-19
[EN] The present invention is directed to a process for chemoselective substitution on a halopyrimidine carboxaldehyde having multiple reactive sites and subsequent stereoselective oxime formation. [FR] La présente invention concerne un procédé de substitution chimiosélective sur un carboxaldéhyde d'halogéno-pyrimidine présentant des sites réactifs multiples et ensuite la formation stéréosélective d'oximes.