Application of the intramolecular Diels–Alder vinylarene (IMDAV) reaction for the synthesis of benzo-, carbocyclo-, thienothiopheneisoindolecarboxylic acids and its limitations
作者:Elizaveta D. Yakovleva、Evgeniya R. Shelukho、Maryana A. Nadirova、Pavel P. Erokhin、Daria N. Simakova、Victor N. Khrustalev、Mikhail S. Grigoriev、Anton P. Novikov、Anna A. Romanycheva、Anton A. Shetnev、Olga P. Bychkova、Alexey S. Trenin、Fedor I. Zubkov、Vladimir P. Zaytsev
DOI:10.1039/d3ob01933k
日期:——
heterocycle. The obtained functionally substituted thieno[2,3-f]isoindole carboxylic acids are potentially useful substrates for further transformations and bioscreening. The antimicrobial evaluation of the obtained compounds revealed that 1-oxo-2-(3-(trifluoromethyl)phenyl)hexahydrobenzo[4,5]thieno[2,3-f]isoindole-10-carboxylic acid is the most active sample in the synthesized library. It exhibits antibacterial
噻吩基烯丙胺很容易从相应的噻吩基醛中获得,与马来酸酐和三氟甲基马来酸酐反应,形成具有噻吩并[2,3- f ]异吲哚核心的酸。该反应序列涉及两个连续步骤:初始烯丙胺的氮原子的酰化和分子内狄尔斯-阿尔德乙烯基芳烃(IMDAV)反应。对所提出方法的范围和局限性进行了彻底研究。借助X射线分析和DFT计算表明,关键步骤IMDAV反应通过外过渡态进行,导致目标杂环的单一非对映异构体的排他性形成。所获得的功能取代的噻吩并[2,3- f ]异吲哚羧酸是用于进一步转化和生物筛选的潜在有用底物。对所得化合物的抗菌评估表明,1-氧代-2-(3-(三氟甲基)苯基)六氢苯并[4,5]噻吩并[2,3- f ]异吲哚-10-甲酸是该化合物中活性最高的样品。合成文库。它对金黄色葡萄球菌、屎肠球菌、蜡样芽孢杆菌、藤黄微球菌等敏感的革兰氏阳性菌以及大肠杆菌、荧光假单胞菌等革兰氏阴性菌具有抗菌活性,MIC值范围为4~ 64μg·mL