Conjugateaddition reaction of various nucleophiles across the vinyl group of 2-chloro-4-vinylpyrimidine, 2-chloro-4-(1-phenylvinyl)pyrimidine and 2-chloro-4-vinyl-quinazoline provides the corresponding 2-chloro-4-(2-substituted ethyl)pyrimidines and 2-chloro-4-(2-substituted ethyl)quinazolines. Treatment of these products, without isolation, with N-methylpiperazine results in nucleophilic displacement
Improved Synthesis of 4-(2-Substituted ethyl)-2-(4-Methylpiperazino)Quinazolines
作者:Elizabeth Raux,、Lucjan Strekowski,
DOI:10.1515/hc.2010.16.2-3.85
日期:2010.6
title compounds is reported. Quinazoline derivatives show a wide variety of biological activities.' In particular, 2-amino substituted quinazolines exhibit activity as anti-inflammatory agents through the interaction with the histamine H4 receptor, function as CCR4 antagonists, and are selective ligands for the 5-HT2A receptor.' An improved procedure for the preparation of 4-(2-substituted ethyl)-2-(4