RACEMIZATION AND ENANTIOMER SEPARATION OF CLOPIDOGREL
申请人:——
公开号:US20040024011A1
公开(公告)日:2004-02-05
Processes for separation of enantiomers of clopidogrel, and converting one enantiomer of clopidogrel to another enantiomer of clopidogrel are provided. The enantiomers are separated by crystallizing the (S) enantiomer as camphor sulfonate salt from a hydrocarbon, or a mixture of a hydrocarbon and a co-solvent, preferably DMF:toluene. The (R) enantiomer is then racemized and recycled by reaction with a catalytic amount of a base, preferably with t-butoxide.
Racemization and enantiomer separation of clopidogrel
申请人:——
公开号:US20040024012A1
公开(公告)日:2004-02-05
Processes for separation of enantiomers of clopidogrel, and converting one enantiomer of clopidogrel to another enantiomer of clopidogrel are provided. The enantiomers are separated by crystallizing the (S) enantiomer as camphor sulfonate salt from a hydrocarbon, or a mixture of a hydrocarbon and a co-solvent, preferably DMF:toluene. The (R) enantiomer is then racemized and recycled by reaction with a catalytic amount of a base, preferably with t-butoxide.
[EN] A PROCESS FOR THE PREPARATION OF S-CLOPIDOGREL<br/>[FR] PROCÉDÉ DE PRÉPARATION DE S-CLOPIDOGREL
申请人:SANDOZ AG
公开号:WO2010046476A1
公开(公告)日:2010-04-29
A process for the preparation of (S) - Clopidogrel free base or a pharmaceutically acceptable salt thereof by the racemization of the undesired (R) - Clopidogrel in the presence of a suitable base followed by resolution with camphor sulfonate salt and further treatment with an inorganic acid to yield the title compound.
[EN] ANTIPLATELET DRUGS AND USES THEREOF<br/>[FR] MÉDICAMENTS ANTIPLAQUETTAIRES ET LEURS UTILISATIONS
申请人:SHANGHAI CUREGENE PHARMACEUTICAL CO LTD
公开号:WO2022022559A1
公开(公告)日:2022-02-03
The present disclosure relates to compounds which exhibit activity in the inhibition of platelet aggregation as well as pharmaceutical compositions comprising these compounds and methods of treatment of vascular diseases by administration of these compounds or the pharmaceutical compositions.