Additive-Free Three-Component Synthesis of Spiro-isoxazolidine-oxindoles Employing Trifluorodiazoethane
作者:Ekta Gupta、Sindoori R. Nair、Ruchir Kant、Kishor Mohanan
DOI:10.1021/acs.joc.8b02504
日期:2018.12.7
three-component protocol for the synthesis of trifluoromethylated spiro-isoxazolidine-oxindoles has been developed. This approach employs the 1,3-dipolar cycloaddition of trifluoromethyl nitrone, generated in situ from trifluorodiazoethane and nitrosoarene, with phenacylideneoxindoles. A range of phenacyclideneoxindoles and nitrosoarenes can be subjected to this reaction to generate the spiro-isoxazolidine-oxindole
classical Pinnick oxidation into a new and promising oxidative lactonization reaction is reported. Chiral 3-oxindolepropionic aldehydes, Michael adducts of 3-olefinic oxindoles with aliphatic aldehydes, are directly converted to spirocyclic oxindole-γ-lactones solely by sodium chlorite via a tandem Pinnick oxidation/chlorination/substitution sequence. This reaction uses waste ClO– generated in the initial
[EN] 3-ACYLIDENE-2-OXOINDOLE DERIVATIVES FOR INHIBITION OF TRANSGLUTAMINASE 2<br/>[FR] DÉRIVÉS 3-ACYLIDÈNE-2-OXOINDOLE DESTINÉS À INHIBER LA TRANSGLUTAMINASE 2
申请人:NUMERATE INC
公开号:WO2012078519A2
公开(公告)日:2012-06-14
Provided herein are acylidene oxoindole derivatives, compositions including them, and methods of inhibiting transglutaminase 2 and treating diseases mediated by transglutaminase 2 by administering such derivatives and compositions.