[EN] PROCESS FOR MAKING CRYSTALLINE FORM I OF ETORICOXIB<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UNE FORME CRISTALLINE I DE L'ÉTORICOXIB
申请人:SYNTHON BV
公开号:WO2013075732A1
公开(公告)日:2013-05-30
The present invention relates to an improved process for making the pharmaceutically advantageous crystalline Form I of etoricoxib, which comprises making a solution of etoricoxib in an organic solvent miscible with aliphatic/alicyclic hydrocarbons, followed by mixing the solution with an aliphatic/alicyclic hydrocarbon antisolvent at a preselected temperature, at which the Form I precipitates.