Process for the preparation of enantiopure pyrrolidin-2-one derivatives
申请人:Iding Hans
公开号:US20050065204A1
公开(公告)日:2005-03-24
The present invention relates to a process for the preparation of enantiopure intermediates useful in the synthesis of valuable pharmaceutically active compounds, e.g. MAOB inhibitors, and to novel intermediates of formulae I and II
wherein R
21
, R
22
, R
23
and R
24
are as defined in the description and claims.
[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.
Method for preparing enantiomerically pure 4-pyrrolidino phenylbenzyl ether derivatives
申请人:Hildbrand Stefan
公开号:US20060211868A1
公开(公告)日:2006-09-21
The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I:
wherein R
1
, R
21
, R
22
, R
23
, R
24
and n are as defined in the description and claims and to intermediates useful in the method of the invention as well as salts thereof.
Method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives
申请人:Lohri Bruno
公开号:US20060211869A1
公开(公告)日:2006-09-21
The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I:
wherein R
1
, R
21
, R
22
, R
23
, R
24
and n are as defined the description and claims and to intermediates and salts thereof useful in the method of the invention.
The invention relates to racemic or enantiomerically pure 4-pyrrolidino derivatives, processes for their preparation, pharmaceutical compositions comprising said derivatives, and their use in the prevention and treatment of a disease which is mediated by a monoamine oxidase B inhibitor, in particular Alzheimer's disease and senile dementia.