Selective Benzopyranone and Pyrimido[2,1-<i>a</i>]isoquinolin-4-one Inhibitors of DNA-Dependent Protein Kinase: Synthesis, Structure−Activity Studies, and Radiosensitization of a Human Tumor Cell Line in Vitro
作者:Roger J. Griffin、Gabriele Fontana、Bernard T. Golding、Sophie Guiard、Ian R. Hardcastle、Justin J. J. Leahy、Niall Martin、Caroline Richardson、Laurent Rigoreau、Martin Stockley、Graeme C. M. Smith
DOI:10.1021/jm049526a
日期:2005.1.1
scaffolds were less potent. Crucially, these studies revealed a very constrained structure-activityrelationship at the 2-position of the benzopyranone and pyrimido[2,1-a]isoquinolin-4-one pharmacophore, with only a 2-morpholino or 2-(2'-methylmorpholino) group being tolerated at this position. More detailed biological studies conducted with the most potent inhibitor NU7163 (48; IC(50) = 0.19 microM) demonstrated
Catalytic Asymmetric β-C–H Functionalizations of Ketones via Enamine Oxidation
作者:Lihui Zhu、Long Zhang、Sanzhong Luo
DOI:10.1021/acs.orglett.8b00508
日期:2018.3.16
A chiral primary amine catalyzed oxidative β-C–H functionalization of ketone is described. The reaction proceeds via ketone enamine oxidation by IBX and enables highly enantioselective remote C–H functionalization of both cyclic and acyclic ketones, generating chiral ketones bearing β-stereocenters.
A Convenient and Efficient Synthesis of Coumarin-Containing Phthalides and Derivatives
作者:Xing-Wen Sun、Guoqiang Lin、Shao-Chun Shen
DOI:10.1055/s-0032-1316871
日期:——
obtained viareactions between 4-hydroxycoumarins (or 4-hydroxy-2-quinolones) with different 2-formylbenzoic acids in water as an environmentally friendly solvent. 4-Aryl substituted derivatives of 3-(4-hydroxy)coumarinylphthalide are obtained in excellent yields by initial conversion into the corresponding triflate and subsequent palladium-catalyzed Suzuki–Miyaura coupling with arylboronicacids. A highly
Regioselective Access to Structurally Diverse Coumarin Analogues through Iron-Catalysed Annulation Reactions
作者:Qiao Ren、Jie Kang、Muyao Li、Lujiang Yuan、Ruoyun Chen、Lei Wang
DOI:10.1002/ejoc.201700999
日期:2017.10.10
A highly efficient iron-catalysed propargylation/alkyne oxacyclization/isomerization strategy is described. Biologically active furo[3,2-c]coumarins and pyrano[3,2-c]coumarins are expeditiously assembled with high regioselectivities.
描述了一种高效的铁催化的炔丙基化/炔基羰基化/异构化策略。具有高区域选择性的生物活性呋喃[3,2- c ]香豆素和吡喃并[3,2- c ]香豆素被迅速组装。
[EN] SUBSTITUTED FUROCHROMENE COMPOUNDS OF ANTIINFLAMMATORY ACTION<br/>[FR] COMPOSES DE FUROCHROMENE SUBSTITUES A ACTION ANTI-INFLAMMATOIRE
申请人:PLIVA ISTRAZIVACKI INST D O O
公开号:WO2005010006A1
公开(公告)日:2005-02-03
The present invention relates to novel compounds of the formula (I) including all stereoisomers and tautomers, to the pharmaceutically acceptable salts and solvates thereof, to the processes and reactive intermediates for their preparation and to their use in the prophylaxis and treatment of asthma and other inflammatory diseases and/or conditions in humans.