[EN] A PROCESS FOR PREPARATION OF PHENYL CARBAMATE DERIVATIVE AND POLYMORPHIC FORMS THEREOF<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'UN DÉRIVÉ DE PHÉNYLCARBAMATE ET DE FORMES POLYMORPHES DE CELUI-CI
申请人:CADILA HEALTHCARE LTD
公开号:WO2013179298A2
公开(公告)日:2013-12-05
The present invention discloses a stable retigabine which comprises (d) mixture of crystalline modification Form -A and modification Form-B; or (e) mixture of crystalline modification Form-A and modification Form-C; or (f) mixture of crystalline modification Form-B and modification Form-C, wherein the mixture of crystalline modification in (a) or (b) or (c) doesn't convert to crystalline modification Form-A or modification Form-B or modification Form-C.