4-苄基哌啶基部分是强效的中央结构元件Ñ甲基d含有GluN2B亚基天冬氨酸(NMDA)受体拮抗剂。为了获得适用于正电子发射断层扫描的新型GluN2B配体,苄基哌啶部分被氟化的ω-苯基烷基氨基取代。为此,通过3到7步合成过程制备了三个带有氟原子和ω-苯基部分的伯丙胺和丁胺7a - c和一个丁醛7d。化合物7 a – d被连接到各种有效的GluN2B拮抗剂支架上(支架跳跃),而不是最初的4-苄基哌啶部分。尽管具有苄基哌啶部分的苯并恶唑-2-酮和吲哚显示出较高的GluN2B亲和力,但相应的氟苯基烷基胺衍生物并未产生较高的Glu2B亲和力。对于3-(氟代烷基)取代的四氢-1 H -3苯并ze庚因(K i = 239 n m),观察到中等的GluN2B亲和力。但是,对四氢-5 H苯并[7]年戊烯-7胺12 a – c(K i = 17–30 n m)获得了很高的GluN2B亲和力。对接研究导致相同的约束姿势铅化合物Ro
fluorinated ligands 4 and 5 are almost identical. The low impact of the F-atom on GluN2B affinity was unexpected, as it influences several chemical and physicochemical properties of the ligands. However, introduction of the F-atom led to reduced selectivity over σ receptors. Whereas 5a and 5b display still a 2–3-fold preference for GluN2B over σ1 receptors, they show almost the same affinity to GluN2B and
Synthesis and pharmacological evaluation of fluorinated benzo[7]annulen-7-amines as GluN2B-selective NMDA receptor antagonists
作者:Simone Thum、Dirk Schepmann、Raquel F. Reinoso、Inés Alvarez、Simon M. Ametamey、Bernhard Wünsch
DOI:10.1002/jlcr.3718
日期:2019.6.30
potential, GluN2B-selective ligands are of great interest for the treatment of various neurological and neurodegenerative disorders. Fluorinated benzo[7]annulen-7-amines, capable for PET, were synthesized by combining fluorinated phenylalkylamines with differently substituted ketones. Relationships between substitution pattern and GluN2B affinity as well as selectivity towards σ1 and σ2 receptors were investigated
Replacement of the Benzylpiperidine Moiety with Fluorinated Phenylalkyl Side Chains for the Development of GluN2B Receptor Ligands
作者:Simone Thum、Dirk Schepmann、Dmitrii V. Kalinin、Simon M. Ametamey、Bernhard Wünsch
DOI:10.1002/cmdc.201800566
日期:2018.12.6
syntheses. Compounds 7 a–d were attached to various scaffolds of potent GluN2Bantagonists (scaffold hopping) instead of the original 4‐benzylpiperidine moiety. Although benzoxazol‐2‐ones and indoles with a benzylpiperidine moiety show high GluN2B affinity, the corresponding fluorophenylalkylamine derivatives did not result in high Glu2B affinity. Moderate GluN2B affinity was observed for a 3‐(fluoroalkyl)‐substituted
4-苄基哌啶基部分是强效的中央结构元件Ñ甲基d含有GluN2B亚基天冬氨酸(NMDA)受体拮抗剂。为了获得适用于正电子发射断层扫描的新型GluN2B配体,苄基哌啶部分被氟化的ω-苯基烷基氨基取代。为此,通过3到7步合成过程制备了三个带有氟原子和ω-苯基部分的伯丙胺和丁胺7a - c和一个丁醛7d。化合物7 a – d被连接到各种有效的GluN2B拮抗剂支架上(支架跳跃),而不是最初的4-苄基哌啶部分。尽管具有苄基哌啶部分的苯并恶唑-2-酮和吲哚显示出较高的GluN2B亲和力,但相应的氟苯基烷基胺衍生物并未产生较高的Glu2B亲和力。对于3-(氟代烷基)取代的四氢-1 H -3苯并ze庚因(K i = 239 n m),观察到中等的GluN2B亲和力。但是,对四氢-5 H苯并[7]年戊烯-7胺12 a – c(K i = 17–30 n m)获得了很高的GluN2B亲和力。对接研究导致相同的约束姿势铅化合物Ro