Exploration of Diazaspiro Cores as Piperazine Bioisosteres in the Development of σ2 Receptor Ligands
作者:Kuiying Xu、Chia-Ju Hsieh、Ji Youn Lee、Aladdin Riad、Nicholas J. Izzo、Gary Look、Susan Catalano、Robert H. Mach
DOI:10.3390/ijms23158259
日期:——
On the other hand, the bridged 2,5-diazabicyclo[2.2.1]heptane, 1,4-diazepine, and a 3-aminoazetidine analog possessed nanomolar affinities for the σ2R. Computational chemistry studies were also conducted with the recently published crystal structure of the σ2R/TMEM97 and revealed that hydrogen bond interactions with ASP29 and π-stacking interactions with TYR150 were largely responsible for the high
合成了一系列含有苯并咪唑酮和二氮杂环烷烃核心的 σ2R 化合物,并在放射性配体结合测定中进行了评估。用二氮杂螺烷烃和稠合的八氢吡咯并 [3,4-b] 吡咯环系统取代先导化合物中的哌嗪部分会导致对 σ2R 的亲和力丧失。另一方面,桥接的 2,5-二氮杂双环 [2.2.1] 庚烷、1,4-二氮杂卓和 3-氨基氮杂环丁烷类似物对 σ2R 具有纳摩尔亲和力。还对最近发表的 σ2R/TMEM97 晶体结构进行了计算化学研究,结果表明,与 ASP29 的氢键相互作用和与 TYR150 的 π 堆积相互作用是小分子对该蛋白质具有高结合亲和力的主要原因。