Pyrrolo[1,3]benzothiazepine-Based Atypical Antipsychotic Agents. Synthesis, Structure−Activity Relationship, Molecular Modeling, and Biological Studies
作者:Giuseppe Campiani、Stefania Butini、Sandra Gemma、Vito Nacci、Caterina Fattorusso、Bruno Catalanotti、Gianluca Giorgi、Alfredo Cagnotto、Mara Goegan、Tiziana Mennini、Patrizia Minetti、M. Assunta Di Cesare、Domenico Mastroianni、Nazzareno Scafetta、Bruno Galletti、M. Antonietta Stasi、Massimo Castorina、Licia Pacifici、Orlando Ghirardi、Ornella Tinti、Paolo Carminati
DOI:10.1021/jm010982y
日期:2002.1.1
serotonin antagonist (+/-)-7-chloro-9-(4-methylpiperazin-1-yl)-9,10-dihydropyrrolo[2,1-b][1,3]benzothiazepine (5) was resolved into its R and S enantiomers via crystallization of the diastereomeric tartaric acid salts. Binding studies confirmed that the (R)-(-)-enantiomer is a more potent D(2) receptor antagonist than the (S)-(+)-enantiomer, with almost identical affinity at the 5-HT(2) receptor ((S)-(+)-5
典型的多巴胺和5-羟色胺拮抗剂(+/-)-7-氯-9-(4-甲基哌嗪-1-基)-9,10-二氢吡咯并[2,1-b] [1,3]苯并噻氮平(5)为通过非对映异构的酒石酸酯盐的结晶而拆分成R和S对映体。结合研究证实,(R)-(-)-对映体比(S)-(+)-对映体是更有效的D(2)受体拮抗剂,对5-HT(2)受体的亲和力几乎相同( (S)-(+)-5,对数Y = 4.7;(R)-(-)-5,对数Y = 7.4)。这些数据表明D(2)受体5的重大立体选择性相互作用。此外,在一组受体上测试了对映异构体(S)-(+)-5(ST1460)。该化合物显示出有趣的结合特征,其特征在于对H(1)和alpha(1)受体具有高亲和力,对alpha(2)和D(3)受体具有中等亲和力,对毒蕈碱受体的亲和力低。药理和生化研究证实(S)-(+)-5具有非典型药理作用。这种非典型抗精神病药的铅在大鼠中诱发僵直的倾向性很低。