With the aim of developing a novel neuroleptic drug, a series of ω-(4-phenyl-1-piperazinyl)-alkoxy-2 (1H)-quinolinone derivatives have been synthesized and tested for anti-methamphetamine and anti-epinephrine activities. Most of the derivatives were found to possess a potent antimethamphetamine activity in the jumping behavior test on mice treated with 3-(3, 4-dihydroxyphenyl)-L-alanine (L-DOPA) and methamphetamine, or in the lethality test with methamphetamine-treated mice. They also showed relatively high anti-epinephrine potency depending on the nature or number of substituents on the phenyl group in the 4-phenyl-1-piperazinyl moiety; some of these compounds induced only weak catalepsy in mice. Among them, 7-3-[4-(2, 3-dimethylphenyl)-1-piperazinyl]propoxy}-2 (1H)-quinolinone (OPC-4392), which was suggested to be a dopamine autoreceptor agonist, was selected for further investigations. The structure-activity relationships are also discussed.
为了开发一种新型的神经
安定药物,合成了一系列ω-(4-苯基-1-
哌嗪基)-烷氧基-2(1H)-
喹啉酮衍
生物,并测试了它们的抗甲基苯
丙胺和抗
肾上腺素活性。大多数衍
生物在3-(3, 4-二羟基苯基)-
L-天冬氨酸(L-
DOPA)和甲基苯
丙胺处理的小鼠的跳跃行为测试中显示出强效的抗甲基苯
丙胺活性,或者在甲基苯
丙胺处理的小鼠的致死性测试中表现出显著效果。它们还表现出相对较高的抗
肾上腺素效能,这取决于取代基在4-苯基-1-
哌嗪基上的性质或数量;其中一些化合物在小鼠中仅引起轻微的强直症。在这些化合物中,7-3-[4-(2, 3-二甲基苯基)-1-
哌嗪基]丙氧基}-2(1H)-
喹啉酮(OPC-4392),被认为是一种
多巴胺自受体激动剂,已被选定用于进一步研究。同时,本文也讨论了结构-活性关系。