N-Arylalkyl-2-azaadamantanes as cage-expanded polycarbocyclic sigma (σ) receptor ligands
摘要:
A series of racemic N-arylalkyl-2-azaadamantan-1-ols (9-15) and the corresponding deoxygenated, achiral N-arylalkyl-2-azaadamantanes (23-29) were synthesized and screened in competition binding assays against a panel of CNS targets. Adamantyl hemiaminals 9-15 displayed generally low affinity for both sigma(1) (K-i values = 294-1950 nM) and sigma(2) receptors (K-i values = 201-1020 nM), and negligible affinity for 42 other CNS proteins. Deoxygenation of 9-15 to give the corresponding achiral azaadamantanes 23-29 greatly improved affinity for sigma(1) (K-i values = 8.3-239 nM) and sigma(2) receptors (K-i values = 34-312 nM). (C) 2011 Elsevier Ltd. All rights reserved.
A Facile Approach to Bis(isoxazoles), Promising Ligands of the AMPA Receptor
作者:Dmitry A. Vasilenko、Kirill S. Sadovnikov、Kseniya N. Sedenkova、Dmitry S. Karlov、Eugene V. Radchenko、Yuri K. Grishin、Victor B. Rybakov、Tamara S. Kuznetsova、Vladimir L. Zamoyski、Vladimir V. Grigoriev、Vladimir A. Palyulin、Elena B. Averina
DOI:10.3390/molecules26216411
日期:——
convenient synthetic approach to novel functionalized bis(isoxazoles), the promising bivalent ligands of the AMPA receptor, was elaborated. It was based on the heterocyclization reactions of readily available electrophilic alkenes with the tetranitromethane-triethylamine complex. The structural diversity of the synthesized compounds was demonstrated. In the electrophysiological experiments using the patch
详细阐述了一种新型功能化双(异恶唑)(AMPA 受体的有前途的二价配体)的便捷合成方法。它基于易于获得的亲电烯烃与四硝基甲烷-三乙胺络合物的杂环化反应。证明了合成化合物的结构多样性。在浦肯野神经元上使用膜片钳技术的电生理实验中,化合物 1,4-苯二(亚甲基)双(5-氨基异恶唑-3-羧酸盐)被证明是高效的 AMPA 受体正调节剂,增强红藻氨酸诱导的10 -11 M 时电流高达 70% 。
[EN] CONFORMATIONALLY CONSTRAINED PACLITAXEL ANALOGS AND THEIR USE AS ANTICANCER AND ANTI-ALZHEIMERS AGENTS<br/>[FR] ANALOGUES DE PACLITAXEL A CONTRAINTES CONFORMATIONNELLES ET LEUR UTILISATION EN TANT QU'AGENTS ANTICANCEREUX ET ANTI-ALZHEIMER
申请人:VIRGINIA TECH INTELL PROP
公开号:WO2005070414A1
公开(公告)日:2005-08-04
Constrained paclitaxel derivatives include a bridge extending from the C-3’ phenyl to either the C4 or -3 positions. Many of the constrained paclitaxel derivatives provide activity comparable or superior to the natural product paclitaxel.
Adamantane amine-linked chloroquinoline derivatives as chloroquine resistance modulating agents in Plasmodium falciparum
作者:Opute M. Yvette、Sarel F. Malan、Dale Taylor、Erika Kapp、Jacques Joubert
DOI:10.1016/j.bmcl.2018.03.026
日期:2018.5
Previously we have shown that pentacycloundecylamine- chloroquinoline (PCU-CQ) conjugates possess significant chemosensitizing abilities and can circumvent the resistance associated with chloroquine (CQ) resistant plasmodia. In order to further explore structurally related polycyclic compounds as reversed CQ agents we synthesized a series of eight aza-adamantanol (1-4) and adamantane-imine (5-8) CQ conjugates. All conjugates showed limited cytotoxicity against CHO cells (IC50 > 37 mM). Compounds 1, 2 and 5 were highly active (K1 IC50 < 100 nM) exhibiting a 3-4- fold increase in antiplasmodial activity against CQ resistant strain K1 compared to CQ. Reduced cross-resistance (resistance index, RI: 2-4.3) relative to CQ (RI = 38) was also observed for these compounds. Compound 1 which showed an 18-fold enhancement at retaining its activity against the K1 strain compared to CQ is a promising candidate to substitute CQ in P. falciparum resistant malaria. (C) 2018 Elsevier Ltd. All rights reserved.
Oxidation of 7-(hydroxymethyl)bicyclo[3.3.1]nonan-3-ol. Convenient synthesis of bicyclo[3.3.1]nonane-3,7-dione
作者:Julie A. Zalikowski、Kevin E. Gilbert、Weston Thatcher Borden
DOI:10.1021/jo01290a029
日期:1980.1
ZALIKOWSKI J. A.; GILBERT K. E.; BORDEN W. T., J. ORG. CHEM., 1980, 45, NO 2, 346-347