Synthesis of novel chiral Δ2-isoxazoline derivatives related to ABT-418 and estimation of their affinity at neuronal nicotinic acetylcholine receptor subtypes
作者:Clelia Dallanoce、Pietro Magrone、Carlo Matera、Leonardo Lo Presti、Marco De Amici、Loredana Riganti、Francesco Clementi、Cecilia Gotti、Carlo De Micheli
DOI:10.1016/j.ejmech.2010.09.009
日期:2010.12
target compounds by means of an X-ray analysis. The derivatives under study were assayed at neuronal acetylcholine nicotinic receptors (nAChRs), where they showed a meaningful reduction in affinity at the heteromeric α4β2 subtype when compared to the reference molecules. Conversely, anti (2S,5′S)-5b and syn (2S,5′R)-10a isomers showed an affinity for the α7 nAChRs comparable to that observed for the
的对映体纯非对映体Δ 2个-isoxazoline衍生物(2小号,5' - [R )-图5a-10A及(2小号,5'小号) - 5b中,(2小号,5'小号) -图9b,(2小号,5'小号)-11b是ABT-418 2和氧亚氨基醚(S)-3和(Z)-(S)-4的结构类似物,是通过环加成反应合成的,其中涉及腈氧化物为1,3-偶极和(S)-N-Boc-2-乙烯基吡咯烷-13为亲二极性体。通过X射线分析将绝对构型明确分配给目标化合物。在神经元乙酰胆碱的烟碱样受体(nAChRs)上分析了正在研究的衍生物,与参考分子相比,它们在异源α4β2亚型上的亲和力显着降低。相反地,抗(2小号,5'小号) -图5b和SYN(2小号,5' - [R )- 10A异构体显示出对α7烟碱受体比得上用于模型化合物ABT-418观察到的亲和力。