Discovery of wrightiadione as a novel template for the TrkA kinase inhibitors
摘要:
Enzymatic kinase assays and docking simulation studies have shown that the natural product wrightiadione displays inhibitory activity toward TrkA and PLK3. In this study, the template of wrightiadione served as a starting point for Trk inhibitor development campaigns. Molecular simulation provided structural insights for the design of derivatives that were efficiently generated by our recently developed 3-step tandem synthetic approach, resulting in the discovery of compound 2h with biochemical potency at the single-digit micromolar level. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis of Flavanone and Quinazolinone Derivatives from the Ruthenium-Catalyzed Deaminative Coupling Reaction of 2′-Hydroxyaryl Ketones and 2-Aminobenzamides with Simple Amines
作者:Krishna Gnyawali、Pandula T. Kirinde Arachchige、Chae S. Yi
DOI:10.1021/acs.orglett.1c03870
日期:2022.1.14
deaminative coupling reaction of 2′-hydroxyaryl ketones with simple amines to form 3-substituted flavanone products. The analogous deaminative coupling reaction of 2-aminobenzamides with branched amines directly formed 3,3-disubstituted quinazolinone products. The catalytic method efficiently installs synthetically useful flavanone and quinazolinone core structures without employing any reactive reagents.
photocatalysis and biocatalysis allows for the repurposing of the ‘ene’-reductase enzyme GluER to achieve the enantioselectivesynthesis of benzo-fused heterocycles, and various benzoxepinones, chromanone and indanone were specifically afforded in high yields with good to excellent enantioselectivities after protein engineering of GluER.
divergent synthesis of chromones and chromanones from a common substrate via reductive coupling cyclization by switching hydrosilanes has been developed. Results of mechanistic studies revealed that under PhMeSiH conditions, the reaction initially undergone cyclization to form chromones , which can subsequently be reduced to yield chromanones . When the hydrosilane was switched to EtSiH, the reaction route
作者:Miguel A. Miranda、M. Consuelo Jiménez、Rosa Tormos
DOI:10.3987/com-95-7262
日期:——
Tandem Dehydrogenation/Oxidation/Oxidative Cyclization Approach to Wrightiadione and Its Derivatives
作者:Yujeong Jeong、Youngtaek Moon、Sungwoo Hong
DOI:10.1021/acs.orglett.5b01618
日期:2015.7.2
Wrightiadione contains a unique tetracyclic isoflavone moiety and has been shown to exhibit a broad range of biological activities. An efficient and Straightforward synthetic method for generating the molecular complexity,of wrightiadione was developed, through three-step tandem dehydrogenation/oxidation/oxidative cyclization reactions with a Pd/Cu. catalytic system. This Unprecedented one-pot route utilizes a broad: range of substrates, providing a convenient and powerful synthetic tool for accessing naturally occurring tetracyclic isoflavone wrightiadione and its nitrogen-containing derivatives.