Bismuth(<scp>iii</scp>)-catalyzed regioselective alkylation of tetrahydroquinolines and indolines towards the synthesis of bioactive core-biaryl oxindoles and CYP19 inhibitors
作者:Namrata Prusty、Lakshmana K. Kinthada、Rohit Meena、Rajesh Chebolu、Ponneri Chandrababu Ravikumar
DOI:10.1039/d0ob02385j
日期:——
Bismuth(III)-catalyzed regioselective functionalization at the C-6 position of tetrahydroquinolines and the C-5 position of indolines has been demonstrated. For the first time, one pot symmetrical and unsymmetrical arylation of isatins with tetrahydroquinolines was accomplished giving a completely new product skeleton in good to excellent yields. Most importantly, this protocol leads to the formation
The invention relates to sulfonamide compounds and methods for activating PKM2. The compounds and methods are useful in treating or preventing a disease or disorder selected from cancer, cell proliferative disorder, inflammatory disorder, metabolic disorder, and immune system disorder.
Nickel-Mediated Inter- and Intramolecular Reductive Cross-Coupling of Unactivated Alkyl Bromides and Aryl Iodides at Room Temperature
作者:Chang-Song Yan、Yu Peng、Xiao-Bo Xu、Ya-Wen Wang
DOI:10.1002/chem.201200190
日期:2012.5.7
A nickel‐mediated intermolecular reductivecross‐coupling reaction of unactivated alkyl bromides and aryl iodides at room temperature has been developed and successfully extended to less explored intramolecular versions and tandem cyclization‐intermolecular cross‐coupling. Highly stereoselective (or stereospecific) synthesis of linear‐fused perhydrofuro[2,3‐b]furan (pyran) and spiroketal skeletons
已开发出室温下未活化的烷基溴和芳基碘的镍介导的分子间还原性交叉偶联反应,并成功地扩展到较少探索的分子内版本和串联环化-分子间交叉偶联。线性稠合的全氢呋喃[2,3- b ]呋喃(吡喃)和螺环骨架的高度立体选择性(或立体定向)合成可以快速获得这些有用的结构单元,这在相关天然产物的合成中可能具有潜在的价值。给出了形成连续立体中心的合理解释。
1-(sulfonyl)-5-(arylsulfonyl)indoline as activators of the tumor cell specific M2 isoform of pyruvate kinase
describe the discovery and optimization of a series of PKM2 activators derived from the 2-((2,3-dihydrobenzo[b][1,4] dioxin-6-yl)thio)-1-(2-methyl-1-(methylsulfonyl)indolin-5-yl) ethanone scaffold. The synthesis, SAR analysis, enzyme active site docking, enzymatic reaction kinetics, selectivity and pharmaceutical properties are discussed.
Palladium catalysed aryl amination reactions in supercritical carbon dioxide
作者:Catherine J. Smith、Melanie W. S. Tsang、Andrew B. Holmes、Rick L. Danheiser、Jefferson W. Tester
DOI:10.1039/b509345g
日期:——
Palladiumcatalysed C-N bond formation in supercritical carbondioxide has been accomplished. Carbamic acid formation is avoided in part through the use of an N-silylamine as the coupling partner. Employing a catalyst system of Pd2dba3(1 mol%) and 2-dicyclohexylphosphino-2',4',6'-triisopropyl-1,1'-biphenyl (X-Phos)(2 mol%) enabled the catalytic amination of aryl bromides and chlorides with N-silylanilines