设计,合成和评估了通过将金属螯合剂氯喹醇和抗氧化剂依布硒啉融合而获得的一系列新型化合物,这些化合物可作为针对阿尔茨海默氏病(AD)的多靶标配体。具体而言,与它们的母体化合物喹喔啉和依伯硒仑相比,这些杂种显示出显着的抑制自我和Cu(II)诱导的淀粉样β(Aβ)聚集的能力,并充当了杰出的抗氧化剂和生物金属螯合剂。此外,该杂种在依布硒啉相关的药理特性方面显示出显着改善,包括模仿谷胱甘肽过氧化物酶和清除H 2 O 2的能力。在这些分子中,化合物10h被确定为AD治疗的潜在先导化合物。重要的是,发现该化合物具有快速的H 2 O 2清除活性和谷胱甘肽过氧化物酶样(GPx样)活性。此外,化合物10h能够有效地分解预制的自我和Cu(II)诱导的Aβ聚集体。此外,在高达2000 mg kg -1的剂量下,10h能够穿透中枢神经系统(CNS),并且在小鼠中没有表现出任何急性毒性。
Computer-assisted designed “selenoxy–chinolin”: a new catalytic mechanism of the GPx-like cycle and inhibition of metal-free and metal-associated Aβ aggregation
One-Pot Tandem Synthesis of Furo[3,2-h]quinolines by a Sonogashira Cross-Coupling and Cyclization Reaction Supported by Basic Alumina Under Microwave Irradiation
Acetylenic 8-quinolinols generated in situ by the Sonogashira cross-coupling reaction are efficiently converted into furo[3,2-h]quinolines by microwave-assisted, copper-catalyzed, intramolecular cyclization in the presence of basic alumina. heterocycles - furoquinoline - cross-coupling - cyclizations - solid-phase synthesis - microwaveirradiation
在碱性氧化铝的存在下,通过微波辅助的铜催化的分子内环化作用,通过Sonogashira交叉偶联反应原位生成的乙炔8-喹啉醇可有效地转化为呋喃并[3,2- h ]喹啉。 杂环-呋喃喹啉-交叉偶联-环化-固相合成-微波辐射
Matsumura, Journal of the American Chemical Society, 1927, vol. 49, p. 814
作者:Matsumura
DOI:——
日期:——
A green approach for highly regioselective syntheses of furo[3,2-h]quinolines in aqueous medium
作者:Swarbhanu Sarkar、Rammyani Pal、Nivedita Chatterjee、Samrat Dutta、Subhendu Naskar、Asish Kumar Sen
DOI:10.1016/j.tetlet.2013.05.038
日期:2013.7
An environmentally benign, high yielding, and operationally simple protocol has been developed for the regioselective synthesis of furo[3,2-h]quinolines in aqueous micellar medium involving Cu-free domino Sonogashira reaction followed by 5-endo-dig-cyclization of substituted 8-hydroxyquinolines and terminal allcyne by using Pd(C6H5CN)Cl-2 as catalyst and 2-pyridinecarboxaldehyde methylphenyl hydrazone as ligand under aerobic condition. (C) 2013 Elsevier Ltd. All rights reserved.