Design, synthesis, and x-ray data of novel potential antipsychotic agents. Substituted 7-phenylquinolizidines: stereospecific, neuroleptic, and antinociceptive properties
作者:Rene Imhof、Emilio Kyburz、John J. Daly
DOI:10.1021/jm00368a011
日期:1984.2
semirigid 7-phenylquinolizidine system was selected for the design of new potential antipsychotic agents because it fulfills earlier considerations on the minimal structural and steric requirements necessary to attain a high affinity to the dopamine receptors and, in addition, leaves open many opportunities for variations. Whereas the initial compound 5a, modeled after the structure of butaclamol, was virtually
选择半刚性7-苯基喹唑烷系统设计新的潜在抗精神病药是因为它满足了对多巴胺受体具有高亲和力所需的最小结构和空间要求的早期考虑,此外,还留下了许多变化的机会。仿照丁香酚结构建模的初始化合物5a实际上是无活性的,而在苯环上引入取代基和其他任选的结构元素可通过提供额外的结合力来改善多巴胺的拮抗性能。最初,获得了氯丙嗪效价范围内的化合物:(9aH)-2-叔丁基-7-(2,4-二氯苯基)八氢-2H-喹诺嗪-2-醇(5e)。通过5c的光学分辨率,已证明其生物活性存在于(-)对映异构体中。通过单晶X射线分析确定(-)-5e的绝对构型为2S,7R,9aR。可选结构元素的进一步变化导致出乎意料地发现了具有强抗伤害感受特性的化合物,例如(2R,7S,9aS)-2-丁基辛基-氢-7-苯基-2H-喹啉-2-乙酸丁酯[(+ )-26]。有趣的是,该化合物属于与抗精神病药样(-)-5e相反的对映体系列。