Synthesis and Monoamine Transporter Binding Properties of 3β-(3‘,4‘-Disubstituted phenyl)tropane-2β-carboxylic Acid Methyl Esters
作者:F. Ivy Carroll、Bruce E. Blough、Zhe Nie、Michael J. Kuhar、Leonard L. Howell、Hernan A. Navarro
DOI:10.1021/jm040185a
日期:2005.4.1
3-(4-chlorophenyl)tropane-2-carboxylic acid phenyl ester (RTI-113), 3b shows no detectible DAT occupancy when dosed at its ED(50) for reduction of cocaine self-administration. In contrast, it highly occupies the 5-HTT at this dose. In this study, we report the synthesis and monoamine transporter binding potency of several new 3-(3',4'-disubstituted phenyl)tropane-2-carboxylic acid methyl esters (3c-k), which have binding
3β-(3'-甲基-4'-氯苯基)肌烷-2-羧酸甲酯(3b,RTI-112)是对多巴胺和5-羟色胺转运蛋白(DAT和5-羟色胺都具有高亲和力的3-苯基环烷类似物分别为HTT)。化合物3b在恒河猴中显示出可卡因自我给药的显着减少,但仍不能维持强大的药物自我给药。PET研究表明,与更多DAT选择性类似物(例如GBR 12909和3-(4-氯苯基)托烷-2-羧酸苯基酯(RTI-113))不同,当3b以其ED剂量给药时,DAT占有率未检测到(50)用于减少可卡因的自我管理。相反,在该剂量下它高度占据5-HTT。在这项研究中,我们报告了几种新的3-(3',4' -二取代的苯基)托烷-2-羧酸甲酯(3c-k),其结合性质与3b非常相似。除3',4'-二甲基类似物3k外,所有化合物在DAT和5-HTT处分别具有亚纳摩尔的IC(50)和K(i)值。3'-氯-4'-溴类似物3e(IC(50)= 0.12 n