7-Azabicyclo[2.2.1]heptane as a scaffold for the development of selective sigma-2 (σ2) receptor ligands
作者:Samuel D. Banister、Louis M. Rendina、Michael Kassiou
DOI:10.1016/j.bmcl.2012.04.077
日期:2012.6
A series of N-substituted 7-azabicyclo[2.2.1]heptanes (12–17 and 22–25) and similarly substituted pyrrolidines (32–36 and 41–44) were synthesized as sterically-reduced, achiral analogs of adamantane- and trishomocubane-derived σ ligands. In vitro competition binding assays against σ receptors revealed that arylalkyl N-substituents conferred selectivity for the σ2 subtype, while alicyclic or polycarbocyclic
合成了一系列的N-取代的7-氮杂双环[2.2.1]庚烷(12 – 17和22 – 25)和类似取代的吡咯烷(32 – 36和41 – 44),它们是经空间还原的金刚烷-和-的非手性类似物。从三栖古猿衍生的σ配体。体外竞争对σ受体结合测定法揭示的σ该芳基烷基的N-取代基赋予选择性2亚型,而脂环或多碳取代基赋予高亲和力对两种亚型。所述σ 2个的结合和选择性亚型Ñ-芳基烷基-7-氮杂降冰片烷通常比类似取代的吡咯烷大,这表明氮原子周围的空间体积和构象限制对亚型的识别很重要。