[EN] AN IMRPOVED PROCESS FOR THE PREPARATION OF SELEXIPAG OR ITS PHARMACEUTICALLY ACCEPTABLE SALTS<br/>[FR] PROCÉDÉ AMÉLIORÉ POUR LA PRÉPARATION DE SÉLEXIPAG OU DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES
申请人:LUPIN LTD
公开号:WO2017060827A1
公开(公告)日:2017-04-13
The present invention provides an improved process for Selexipag of formula (I) or its pharmaceutically acceptable salts.
METHOD FOR PREPARING PROSTACYCLIN RECEPTOR AGONIST
申请人:Seasons Biotechnology (Taizhou) Co., Ltd.
公开号:US20180029998A1
公开(公告)日:2018-02-01
The present invention relates to preparation methods of a prostacyclin receptor agonist of 2-4-[N-(5,6-diphenylpyrazin-2-yl)-N-isopropylamino]butyloxy}-N-(methylsulfonyl)acetamide and its intermediates. These methods are simple and convenient to operate, environment-friendly and suitable for industrial production to obtain the product with good yield and high purity.