Pietro Allegrini,Dario Pastorello,Gabriele Razzetti
申请号：
US13451651
公开号：
US08461190B2
申请日:
2012.04.20
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A process for purifying Rufinamide, comprising:a) providing a dispersion of crude 1-[(2,6-difluorophenyl)methyl]-1H-1,2,3-triazole-4-carboxamide in a solvent mixture containing at least a carboxylic acid, and dissolving itb) slowly cooling the solution to precipitate Rufinamide crystalline form A andc) recovering the solid.
