that GaMF1 inhibitsATPsynthase activity by binding to the loop. GaMF1 is bactericidal and is active against multidrug‐ as well as bedaquiline‐resistant strains. Chemistry efforts on the scaffold revealed a dynamic structure activity relationship and delivered analogues with nanomolar potencies. Combining GaMF1 with bedaquiline or noveldiarylquinoline analogues showed potentiation without inducing genotoxicity
F 1 F O -ATP合酶是结核分枝杆菌生长和生存力所必需的并且是经过验证的临床目标。酶旋转γ亚基的分枝杆菌特异性环在酶复合物中ATP合成的偶联中起作用。我们报告发现了针对这种γ亚基环的新型抗分枝杆菌GaMF1的发现。生化和NMR研究表明,GaMF1通过与环结合来抑制ATP合酶活性。GaMF1具有杀菌作用,对多药耐药和苯达喹啉耐药菌株具有活性。在支架上的化学努力揭示了动态结构活性关系,并提供了具有纳摩尔浓度的类似物。GaMF1与苯达喹啉或新型二芳基喹啉类似物的结合在人胚胎干细胞报告基因分析中显示出增强作用,而不会引起基因毒性或表型变化。
New half-sandwich (η6-p-cymene)ruthenium(II) complexes with benzothiazole hydrazone Schiff base ligand: Synthesis, structural characterization and catalysis in transamidation of carboxamide with primary amines
techniques (IR, NMR) and also by mass spectrometry. The solid state structure of the complex 3 reveals the coordination of p-cymene moieties with ruthenium(II) in a three-legged piano-stool geometry along with benzothiazole hydrazone Schiff base ligand in a monobasic bidentate fashion. The catalytic properties of the complexes were screened in transamidation of primary amide with amines after optimization
Traceless selenocarboxylates for the one-pot synthesis of amides and derivatives
作者:Luana Silva、Alisson R. Rosário、Bianca M. Machado、Diogo S. Lüdtke
DOI:10.1016/j.tet.2020.131834
日期:2021.1
procedure for glycosyl amides synthesis using selenocarboxylate as traceless reagent. Herein, we present a further application of selenocarboxylate-azide reaction for amide bond formation on a broader range of substrates, including heterocyclic systems and fatty acid. This method proved to be highly efficient for the synthesis of primary and secondary amides, sulfonamides, imides, phosphoramide and also
Stable and Reusable Binaphthyl‐Supported Palladium Catalyst for Aminocarbonylation of Aryl Iodides
作者:Nidhi Sharma、Govindasamy Sekar
DOI:10.1002/adsc.201500642
日期:2016.1.21
A binaphthyl‐supported Pd nanoparticles (Pd‐BNP)‐catalyzed aminocarbonylation of aryliodides in the presence of carbon monoxide and amines for the synthesis of amides has been developed. This methodology provides an efficient route for the synthesis of a COX‐2 enzyme inhibitor having anti‐inflammatory activity.
Cycling between Au(i) and Au(iii) is challenging, so gold-catalyzed cross-couplings are rare. The (MeDalphos)AuCl complex, which we showed was prone to undergo oxidative addition, is reported here to efficiently catalyze the C-N coupling of aryl iodides and amines. The transformation does not require an externaloxidant or a directing group. It is robust and works with a wide scope of aryl iodides