[EN] CRYSTALLINE FORMS OF A PYRROLIDONE DERIVATIVE USEFUL IN THE TREATMENT OF ALZHEIMER'S DISEASE AND PREPARATION THEREOF [FR] FORMES CRISTALLINES D'UN DÉRIVÉ PYRROLIDONE UTILES DANS LE TRAITEMENT DE LA MALADIE D'ALZHEIMER ET PRÉPARATION DE CELLES-CI
[EN] CRYSTALLINE FORMS OF A PYRROLIDONE DERIVATIVE USEFUL IN THE TREATMENT OF ALZHEIMER'S DISEASE AND PREPARATION THEREOF<br/>[FR] FORMES CRISTALLINES D'UN DÉRIVÉ PYRROLIDONE UTILES DANS LE TRAITEMENT DE LA MALADIE D'ALZHEIMER ET PRÉPARATION DE CELLES-CI
申请人:HOFFMANN LA ROCHE
公开号:WO2015063001A1
公开(公告)日:2015-05-07
The present invention provides processes to manufacture crystalline N-[(3S)-1-[4-[(3-fluorophenyl)methoxy]phenyl]-5-oxo-pyrrolidin-3-yl]acetamide. Also disclosed are polymorphic forms of said compound as well as compounds useful as intermediates in the methods of the invention.
Convenient Synthesis of 3-(S)-Amino-γ-butyrolactone
作者:Martha Sibrian-Vazquez、David A. Spivak
DOI:10.1055/s-2002-32597
日期:——
An efficient two step conversion of N-t-Boc-L-aspartic acid β-benzyl ester to enantiopure 3-(S)-amino-γ-butyrolactone is described. In this route, chemoselective reduction of the α-carboxylic group in the starting material via a mixed anhydride with NaBH 4 afforded the corresponding alcohol in 95% yield without any loss of the optical purity. Subsequent acidic hydrolysis of the N-protected β-amino
PROCESS TO MANUFACTURE N-[(3S)-1-[4-[(3-FLUOROPHENYL)METHOXY]PHENYL]-5-OXO-PYRROLIDIN-3-YL]ACETAMIDE
申请人:Hoffmann-La Roche Inc.
公开号:US20160237032A1
公开(公告)日:2016-08-18
The present invention provides processes to manufacture crystalline N-[(3S)-1-[4-[(3-fluorophenyl)methoxy]phenyl]-5-oxo-pyrrolidin-3-yl]acetamide. Also disclosed are compounds useful as intermediates in the methods of the invention.