Synthesis of novel pyrido[2,1-b]benzothiazole and N-substituted 2-pyridylbenzothiazole derivatives showing remarkable fluorescence and biological activities
作者:Rasha A. Azzam、Galal H. Elgemeie、Rokia R. Osman
DOI:10.1016/j.molstruc.2019.127194
日期:2020.2
Abstract The synthesis of novel pyrido[2,1-b]benzothiazole and pyrido[2,1-b]benzoimidazole derivatives was achieved via the reaction of N-aryl-2-cyano-3,3-bis(methylthio)acrylamide with benzothiazoleylacetonitrile and benzoimidazoleylacetonitrile, respectively, while N-substituted 2-pyridylbenzothiazole derivatives were synthesized by reacting 2-(benzo[d]thiazol-2-yl)-3-(dimethylamino)acrylonitrile
摘要 通过 N-芳基-2-氰基-3,3-双(甲硫基)丙烯酰胺与苯并噻唑乙腈反应,合成了新型吡啶并[2,1-b]苯并噻唑和吡啶并[2,1-b]苯并咪唑衍生物。和苯并咪唑基乙腈,而 N-取代的 2-吡啶基苯并噻唑衍生物是通过 2-(苯并[d]噻唑-2-基)-3-(二甲氨基)丙烯腈与氰基乙酰胺、芳基氰基乙酰胺或 2-氰基-N'反应合成的-(4-取代的亚苄基)乙酰肼。基于稳态荧光测量,新合成的 N-取代 2-吡啶基苯并噻唑衍生物表现出显着的荧光特性,具有相当高的量子产率(0.25-0.29)。此外,还评估了所有新合成衍生物的抗微生物和抗病毒活性。