3-Chloro-2-isothiocyanato-1-propenyl alkyl(aryl) ketones react with hydroxylamine hydrochloride to give 3-alkyl(aryl)-5-chloromethylisoxazole. Treatment of the latter with dimethylamine and ammonium thiocyanate leads to formation of previously unknown 3-alkyl(aryl)-5-dimethylamino(or isothiocyanato)methylisoxazoles.
Synthesis of Halomethyl Isoxazoles/Cyclic Nitrones via Cascade Sequence: 1,2-Halogen Radical Shift as a Key Link
作者:Hong-Lei Chen、Dian Wei、Jian-Wu Zhang、Cheng-Lin Li、Wei Yu、Bing Han
DOI:10.1021/acs.orglett.8b00967
日期:2018.5.18
A novel iminoxyl radical-promoted dichotomous regioselective 5-exo-trig cyclization onto vinylic halogen/1,2-halogen radical shift sequence is developed for the synthesis of halomethyl isoxazoles/cyclic nitrones using β-halo-β,γ- and γ-halo-γ,δ-unsaturated ketoximes as the substrates and PhI(OAc)2/TEMPO as the oxidation system. DFT calculations reveal that a halogen-bridged three-membered ring transition
Processes For The Preparation Of Anti-Viral Compounds And Compositions Containing Them
申请人:Leivers Martin Robert
公开号:US20100029655A1
公开(公告)日:2010-02-04
Disclosed are processes for the preparation of compounds of formula I and compositions that comprise said compounds of formula I.
Also disclosed are processes for the preparation of compounds of formula III and compositions that comprise said compounds of formula III.
[EN] ANTI-VIRAL COMPOUNDS, COMPOSITIONS, AND METHODS OF USE<br/>[FR] COMPOSÉS ANTIVIRAUX, COMPOSITIONS ET LEURS PROCÉDÉS D'UTILISATION
申请人:GENELABS TECH INC
公开号:WO2009011787A1
公开(公告)日:2009-01-22
Disclosed are compounds of Formula (I), pharmaceutically acceptable salts and solvates thereof, compositions thereof, and methods for their preparation and uses for treating viral infections mediated at least in part by a virus in the Flaviviridae family of viruses. (I)
[EN] PROCESSES FOR THE PREPARATION OF ANTI-VIRAL COMPOUNDS AND COMPOSITIONS CONTAINING THEM<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS ANTIVIRAUX ET COMPOSITIONS LES CONTENANT
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2010006096A1
公开(公告)日:2010-01-14
Disclosed are processes for the preparation of compounds of formula I and compositions that comprise said compounds of formula I. See Formula I. Also disclosed are processes for the preparation of compounds of formula III and compositions that comprise said compounds of formula III. See Formula III.
Anti-viral compounds, compositions, and methods of use
申请人:Leivers Martin Robert
公开号:US20090074717A1
公开(公告)日:2009-03-19
Disclosed are compounds of Formula (I), pharmaceutically acceptable salts and solvates thereof, compositions thereof, and methods for their preparation and uses for treating viral infections mediated at least in part by a virus in the Flaviviridae family of viruses.