作者:N. Ullah
DOI:10.14233/ajchem.2014.15639
日期:——
A series of new 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones have been synthesized. The described compounds are structurally related to adoprazine, a potential atypical antipsychotics bearing potent D2 receptor antagonist and 5-HT1A receptor agonist properties. Buchwald-Hartwig coupling of suitably modified aryl bromides with tert-butyl piperazine-1-carboxylate afforded the advanced intermediate piperazinyl-3,4-dihydroquinazolin-2(1H)-one. The reductive amination of the latter with appropriately designed biarylaldehydes accomplished the synthesis of 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones.
一系列新的6-哌嗪基-3,4-二氢喹唑啉-2(1H)-酮已经被合成。这些化合物在结构上与具有强效D2受体拮抗剂和5-HT1A受体激动剂特性的潜在非典型抗精神病药物adoprazine相关。通过布赫瓦尔德-哈特维希耦合,将适当改造的芳基溴化物与叔丁基哌嗪-1-羧酸酯反应,获得了中间体哌嗪基-3,4-二氢喹唑啉-2(1H)-酮。随后,使用适当设计的二芳基醛对该中间体进行还原胺化,成功合成了6-哌嗪基-3,4-二氢喹唑啉-2(1H)-酮。