159970-12-4Relevant articles and documents
Discovery of 5-{2-[5-Chloro-2-(5-ethoxyquinoline-8-sulfonamido)phenyl]ethynyl}-4-methoxypyridine-2-carboxylic Acid, a Highly Selective in Vivo Useable Chemical Probe to Dissect MCT4 Biology
Heinrich, Timo,Sala-Hojman, Ada,Ferretti, Roberta,Petersson, Carl,Minguzzi, Stefano,Gondela, Andrzej,Ramaswamy, Shivapriya,Bartosik, Anna,Czauderna, Frank,Crowley, Lindsey,Wahra, Pamela,Schilke, Heike,B?pple, Pia,Dudek, ?ukasz,Le?, Marcin,Niedziejko, Paulina,Olech, Kamila,Pawlik, Henryk,W?oszczak, ?ukasz,Zuchowicz, Karol,Suarez Alvarez, Jose Ramon,Martyka, Justyna,Sitek, Ewa,Mikulski, Maciej,Szcz??niak, Joanna,J?ckel, Sven,Krier, Mireille,Król, Marcin,Wegener, Ansgar,Ga??zowski, Micha?,Nowak, Mateusz,Becker, Frank,Herhaus, Christian
, p. 11904 - 11933 (2021/09/02)
Due to increased lactate production during glucose metabolism, tumor cells heavily rely on efficient lactate transport to avoid intracellular lactate accumulation and acidification. Monocarboxylate transporter 4 (MCT4/SLC16A3) is a lactate transporter that plays a central role in tumor pH modulation. The discovery and optimization of a novel class of MCT4 inhibitors (hit 9a), identified by a cellular screening in MDA-MB-231, is described. Direct target interaction of the optimized compound 18n with the cytosolic domain of MCT4 was shown after solubilization of the GFP-tagged transporter by fluorescence cross-correlation spectroscopy and microscopic studies. In vitro treatment with 18n resulted in lactate efflux inhibition and reduction of cellular viability in MCT4 high expressing cells. Moreover, pharmacokinetic properties of 18n allowed assessment of lactate modulation and antitumor activity in a mouse tumor model. Thus, 18n represents a valuable tool for investigating selective MCT4 inhibition and its effect on tumor biology.
Asymmetric Synthesis of 3-Methyleneindolines via Rhodium(I)-Catalyzed Alkynylative Cyclization of N-(o-Alkynylaryl)imines
Yuan, Shi-Yi,Yan, Qi-Qi,Wang, Dan,Dan, Ting-Ting,He, Long,He, Cheng-Yu,Chu, Wen-Dao,Liu, Quan-Zhong
supporting information, p. 4823 - 4827 (2021/06/28)
The first asymmetric synthesis of 3-methyleneindolines from alkynyl imines has been developed via a rhodium-catalyzed tandem process: regioselective alkynylation of the internal alkynes and subsequent intramolecular addition to the imines. The reaction pr
Palladium-Catalyzed Ligand-Free Double Cyclization Reactions for the Synthesis of 3-(1′-Indolyl)-phthalides
Yuan, Shuo,Zhang, Dan-Qing,Zhang, Jing-Ya,Yu, Bin,Liu, Hong-Min
supporting information, p. 814 - 817 (2020/02/04)
Indole and phthalide are privileged heterocyclic scaffolds in numerous natural products and bioactive molecules. The synthesis and biological evaluation of the compounds combining these two scaffolds have rarely been reported. Herein, we repot the first palladium-catalyzed ligand-free double cyclization reactions that enable efficient synthesis of 3-(1′-indolyl)-phthalides (42 examples, up to 96% yield) under mild conditions. Notably, only 1.0 mol % of catalyst loading is used, suggesting high efficiency. Late-stage elaborations give highly functionalized analogues.
