[EN] PROCESSES FOR THE PREPARATION OF O-DESMETHYLVENLAFAXINE, FREE FROM ITS DIMER IMPURITIES<br/>[FR] PROCÉDÉS DE PRÉPARATION DE LA O-DESMÉTHYLVENLAFAXINE, EXEMPTE DE SES IMPURETÉS DIMÈRES
                        
                            
                                申请人:TEVA PHARMA
                            
                            
                                公开号:WO2009151494A1
                            
                            
                                公开(公告)日:2009-12-17
                            
                            The present invention provides isolated O-desmethylvenlafaxine impurities ODV-Dimer and ODV-N-Dimer, their use as a reference marker and reference standard, and a process for the preparation of O-desmethylvenlafaxine free from said impurities.