A series of 4-alkoxy-2-(1-piperazinyl)quinazoline derivatives was synthesized and evaluated for its ability to reverse a scopolamine-induced learned impairment in a one-trial passive avoidance task (antiamnestic activity). 2-(4-Allyl-1-piperazinyl)-4-pentyloxyquinazoline (4) showed more potent antiamnestic activity than such reference compounds as aniracetam, idebenone and bifemelane at a wide dose range (1-30 mg/kg)). Compound 4 also exhibited potent anticonvulsive and antihypoxic activities, and was selected as the most promising nootropic candidate agent.
合成了一系列4-烷氧基-2-(1-
哌嗪基)
喹唑啉衍
生物,并评估其在一次性被动回避任务中逆转由
东莨菪碱诱导的学习障碍的能力(抗记忆丧失活性)。2-(4-
丙烯基-1-
哌嗪基)-4-戊氧基
喹唑啉(4)的抗记忆丧失活性在1-30 mg/kg的广泛剂量范围内明显强于参考化合物如阿尼拉塞坦、异苯并酮和比非美兰。化合物4还表现出强效的抗惊厥和抗缺氧活性,并被选为最有前景的认知增强剂候选药物。