使用有效的钯-化合物以高收率合成了一系列新的4-碱基聚吡咯并[1,2- a ]喹喔啉衍生物,生物碱chimanine B的原始和结构类似物以及先前描述的4-烯基吡咯并[1,2- a ]喹喔啉。催化了铃木-宫浦的交叉偶联反应。测试了这些新化合物对三种利什曼原虫属物种的体外抗寄生虫活性。株。生物学结果表明,它对大麦草,墨西哥麦草和多诺氏乳杆菌的前鞭毛体形式具有活性,IC 50范围为1.2至14.7μM。在尝试调查我们的吡咯并[1,2- a]喹喔啉衍生物是一种广谱抗原生动物化合物,对一种布鲁氏锥虫菌株具有活性,还研究了W2和3D7恶性疟原虫菌株。同时,在鼠J774和人HepG2细胞系上评估了这些分子的体外细胞毒性。这些新型合成化合物的结构-活性关系在此进行了讨论。
使用有效的钯-化合物以高收率合成了一系列新的4-碱基聚吡咯并[1,2- a ]喹喔啉衍生物,生物碱chimanine B的原始和结构类似物以及先前描述的4-烯基吡咯并[1,2- a ]喹喔啉。催化了铃木-宫浦的交叉偶联反应。测试了这些新化合物对三种利什曼原虫属物种的体外抗寄生虫活性。株。生物学结果表明,它对大麦草,墨西哥麦草和多诺氏乳杆菌的前鞭毛体形式具有活性,IC 50范围为1.2至14.7μM。在尝试调查我们的吡咯并[1,2- a]喹喔啉衍生物是一种广谱抗原生动物化合物,对一种布鲁氏锥虫菌株具有活性,还研究了W2和3D7恶性疟原虫菌株。同时,在鼠J774和人HepG2细胞系上评估了这些分子的体外细胞毒性。这些新型合成化合物的结构-活性关系在此进行了讨论。
A ruthenium-catalyzed [5+1] annulation of 1-(2-aminophenyl)pyrroles with α-carbonyl sulfoxonium ylides is reported. This reaction provides a one-step method for synthesizing pyrrolo[1,2-a]quinoxaline derivatives under ambient conditions. The system proceeds with a short reaction time and a high functional-group tolerance. Notably, this divergent protocol tolerates β-keto sulfoxonium ylides and can
Annulation of 1-(2-Aminoaryl)pyrroles, Ethers with Elemental Sulfur To Give 1,3,6-Benzothiadiazepine Derivatives through Double C–S Bond Formation and C–O Cleavage of Ethers
作者:Jie Zhang、Chuwen Song、Linfeng Sheng、Ping Liu、Peipei Sun
DOI:10.1021/acs.joc.8b03187
日期:2019.2.15
An efficient three-component reaction of 1-(2-aminoaryl)pyrroles, ethers, and elemental sulfur for constructing N-heterocycle-fused 1,3,6-benzothiadiazepines under transition-metal-free conditions has been developed. Ethers act as both reactants and solvent in this reaction. The method proceeds efficiently over a broad range of substrates with good functional group tolerance.
A Radical-Mediated Approach to the Total Synthesis of Fluorinated Marinoquinoline A and Related Tricyclic and Tetracyclic Congeners
作者:Stephen Hilton、Bhaven Patel
DOI:10.1055/s-0034-1378614
日期:——
A radical-mediated approach to the core structure of fluorinated marinoquinoline A, N-methylated marinoquinoline A and related congeners via the use of Togni’s reagent is described.
描述了通过使用 Togni 试剂对氟化海洋喹啉 A、N-甲基化海洋喹啉 A 和相关同系物的核心结构进行自由基介导的方法。
Copper-Catalyzed Tandem Aerobic Oxidative Cyclization for the Synthesis of Polysubstituted Quinolines via C(sp<sup>3</sup>)/C(sp<sup>2</sup>)–H Bond Functionalization
作者:Xiaobo Pang、Mingzhong Wu、Jixiang Ni、Fuming Zhang、Jingfeng Lan、Baohua Chen、Rulong Yan
DOI:10.1021/acs.joc.7b01575
日期:2017.10.6
One-pot Cu-catalyzed tandem aerobic oxidative cyclization for the synthesis of quinolines from 2-vinylanilines/2-arylanilines and 2-methylquinolines via C(sp3)–H/C(sp2)–H bond functionalization has been developed. Dioxygen as an ideal oxidant has been employed for this transformation. The substrates bearing various functional groups perform well in this process and generate the desired products in