Synthesis and Affinities for Dopamine (D2) and 5-Hydroxytryptamine (5-HT2A Receptors of 1-(Benzoylpropyl)-4-(1-oxocycloalkyl-2-ethyl)- piperazines as Cyclic Butyrophenone Derivatives.
作者:Enrique RAVINA、Javier FUEYO、Christian F. MASAGUER、Jesus NEGREIRA、Jose CID、Isabel LOZA、Angeles HONRUBIA、Helena TRISTAN、Tomas G-FERREIRO、Jose A. FONTENLA、Elizabeth ROSA、Jose M. CALLEJA、Maria L. DE CEBALLOS
DOI:10.1248/cpb.44.534
日期:——
Starting from benzo- or thienocycloalkaneacetic acids, we have prepared a series of 1-(3-p-fluorobenzoylpropyl)-4-(1-oxo-benzo- or thienocycloalkyl-2-ethyl)piperazines 8a-e containing both semirigid and linear butyrophenones pharmacophores. The affinities of these compounds for dopamine (D2) and 5-hydroxytryptamine (5-HT2A) receptors were evaluated in vitro in receptor-binding assays and in functional experiments. The ratios of pKi's for 5-HT2A/D2 receptors may be useful for rapid screening of new compounds and assessing potential induction of extrapyramidal symptoms; ratio values ≥-1.12 (Meltzer's ratio) are predictive of an atypical antipsychotic profile. The new molecules had a ratio in the range of 0.96-1.11 while haloperidol showed a ratio of 0.93. The 2-piperazinoethyl thiotetralone derivative 8d (QF 0506B) with a ratio of 1.11 was the most active compund.
从苯乙酸或噻吩环烷基乙酸开始,我们制备了一系列 1-(3-对氟苯甲酰基丙基)-4-(1-氧代-苯或噻吩环烷基-2-乙基)哌嗪 8a-e,其中含有半刚性和线性丁基苯酮药效团。这些化合物与多巴胺(D2)和 5-羟色胺(5-HT2A)受体的亲和力在体外受体结合实验和功能实验中进行了评估。5-HT2A/D2受体的pKi比值可用于快速筛选新化合物和评估诱发锥体外系症状的可能性;比值为≥-1.12(Meltzer比值)可预测非典型抗精神病药物的特征。新分子的比值范围为 0.96-1.11,而氟哌啶醇的比值为 0.93。比值为 1.11 的 2-哌嗪基乙基硫代四氢萘酮衍生物 8d(QF 0506B)是活性最强的化合物。