我们在这里描述了我们的研究结果,即使用硫脲作为2-叠氮基苯甲醛与炔烃的铜催化叠氮化物-炔烃环加成(CuAAC)的配体。在氮气氛下,在100°C下,使用10 mol%的碘化铜作为催化剂,20 mol%的硫脲作为配体,三乙胺作为碱,DMSO作为溶剂,使2-叠氮基苯甲醛与一定范围的末端炔烃反应。以中等至极高的收率获得了相应的2-(1 H -1,2,3-三唑基)-苯甲醛(2-TBH),根据我们的实验,硫脲的使用减少了副产物的形成。通过分子对接:β-分泌酶(BACE),糖原合酶激酶(GSK-3β)和乙酰胆碱酯酶(AChE),筛选获得的化合物与AD的多个治疗靶点的结合亲和力。考虑到选择最有前途的一种进行体内验证,选择了具有最高亲和力的三种化合物5a,5b和5d并评估了其抗氧化作用。由于抗氧化剂具有与BACE,GSK-3β和AChE亲和力的潜力,因此在由脑室内注射链脲佐菌素(STZ)诱导的AD小鼠模型中
Cu(I)-promoted one-pot click-S<sub>N</sub>Ar reaction of nitrobenzaldehydes
作者:Changhui Su、Zhiyuan Ding、Xia Liu、Kai Cui、Jiejie Ma
DOI:10.1080/00397911.2016.1185526
日期:2016.6.17
ABSTRACT A series of 1,4-disubstituted 1,2,3-triazoles containing formyl was synthesized from a variety of readily available nitrobenzaldehydes and alkynes via a convenient one-pot, click-SNAr reaction with moderate to excellent yields. The reactions were easily carried out in hexamethyl phosphoramide in the absence of a base at 60 °C. GRAPHICAL ABSTRACT
Cu(I)-promoted one-pot synthesis of 1,4-disubstituted 1,2,3-triazoles from anti-3-aryl-2,3-dibromopropanoic acids and nitrobenzaldehydes
作者:Xia Liu、Changhui Su
DOI:10.1080/00397911.2016.1262039
日期:2017.2.16
ABSTRACT A series of 1,4-disubstituted1,2,3-triazoles were synthesized through a one-pot process from easily available anti-3-aryl-2,3-dibromopropanoic acids and nitrobenzaldehydes in hexamethylphosphoric triamide. Inexpensive copper(I) iodide was the catalyst. GRAPHICAL ABSTRACT
The copper-catalyzed multicomponentreaction of 2-iodobenzamides, NaN3 and terminal alkynes for the synthesis of 2-(1,2,3,-triazolyl)benzamide derivatives was achieved in a one-step process and short period of time under mild reaction condition. The transformations consisted of C(aryl)-N bond formation and azide-alkyne cycloadditon. The absence of an external base was found to be crucial in determining