[EN] PIPERIDINE DERIVATIVES AS INHIBITORS OF UBIQUITIN SPECIFIC PROTEASE 7 [FR] DÉRIVÉS DE PIPÉRIDINE UTILISÉS COMME INHIBITEURS DE LA PROTÉASE SPÉCIFIQUE DE L'UBIQUITINE 7
PROCESSES AND INTERMEDIATES FOR THE PREPARATION OF HETEROCYCLIC SULFONAMIDE COMPOUNDS
申请人:Alimardanov Asaf
公开号:US20090023930A1
公开(公告)日:2009-01-22
Methods for preparing compound of formula (I) are described, wherein R
1
-R
3
are defined herein, as are methods for preparing the intermediates formed therein.
Also described are methods for enantioselectively preparing a chiral compound of the following structure, wherein R
2
and R
3
are defined herein.
Novel sulfonamide compounds useful in the treatment of conditions related to the production of beta-amyloid are described, as are routes to their preparation. The sulfonamide compounds are of the following structure, wherein R
1
-R
3
are defined herein. Also provided are pharmaceutical compositions containing these compounds and/or prodrugs of these compounds and a physiologically compatible carrier. These compounds are specifically useful for inhibiting beta amyloid production, and treating Alzheimer's Disease, amyloid angiopathy, cerebral amyloid angiopathy, systemic amyloidosis, hereditary cerebral hemorrhage with amyloidosis of the Dutch type, inclusion body myositis, mild cognitive impairment (MCI) and Down's syndrome.
PROCESS FOR THE PREPARATION OF TRIFLUOROALKYL-PHENYL AND HETEROCYCLIC SULFONAMIDES
申请人:Connolly Terrence Joseph
公开号:US20090023903A1
公开(公告)日:2009-01-22
A novel trifluoroacetylating agent, i.e., N-trifluoroacetylmorpholine, is described. This reagent is useful in the preparation of phenyl and heterocyclic sulfonamide compounds. Methods are therefore described for preparing sulfonamide compounds of the following structure, wherein R
1
and R
2
are defined herein, using N-trifluoroacetylmorpholine. The sulfonamide compounds that may be prepared as described herein include 5-chloro-thiophene-2-sulfonic acid [(1S,2R)-2-(3,5-difluoro-phenyl)-3,3,3-trifluoro-1-hydroxymethyl-propyl]-amide using N-trifluoroacetylmorpholine.
Practical Enantioselective Synthesis of a 3-Aryl-3-trifluoromethyl-2-aminopropanol Derivative
作者:Asaf Alimardanov、Antonia Nikitenko、Terrence J. Connolly、Gregg Feigelson、Anita W. Chan、Zhixian Ding、Mousumi Ghosh、Xinxu Shi、Jianxin Ren、Eric Hansen、Roger Farr、Michael MacEwan、Sam Tadayon、Dane M. Springer、Anthony F. Kreft、Douglas M. Ho、John R. Potoski
DOI:10.1021/op900216v
日期:2009.11.20
Development of a large-scale enantioselectivesynthesis of a lead compound containing a 3-aryl-3-trifluoromethyl-2-aminopropanol core is described. A single isomer of 3,3-disubstituted acrylic acid derivative was prepared via Perkin condensation or Horner−Wadsworth−Emmons olefination, followed by hydrolysis. The acid was converted to a chiral acryloxazolidinone derivative. Hydrogenation of the latter
[EN] PROCESSES AND INTERMEDIATES FOR THE PREPARATION OF HETEROCYCLIC SULFONAMIDE COMPOUNDS<br/>[FR] PROCÉDÉS ET INTERMÉDIAIRES POUR LA PRÉPARATION DE COMPOSÉS SULFONAMIDE HÉTÉROCYCLIQUES
申请人:WYETH CORP
公开号:WO2009012203A1
公开(公告)日:2009-01-22
Methods for preparing compound of Formula (I) are described, wherein R1-R3 are defined herein, as are methods for preparing the intermediates formed therein. Formula (I) Also described are methods for enantioselectively preparing a chiral compound of the following structure, wherein R2 and R3 are defined herein. Formula (II).