WANG GUOCHENG,LIU WENZHENG,GAO YUZHE,YANG HAILONG,HOU QINGWEI,ZHANG YU
申请号：
IN201647018052
公开号：
IN201647018052A
申请日:
2016.05.26
申请国别(地区):
IN
年份:
2016
代理人:
摘要：
Provided in the present invention are a new method for preparing the crystalline forms of Temozolomide and three types of crystalline form of Temozolomide by the method. Said method comprises the following steps: a Temozolomide is dissolved into dimethyl sulphoxide a second organic solvent is added for recrystallization to perpare the crystalline forms of Temozolomide wherein the second organic solvent is an alcohol a ketone a halohydrocarbon or an ester.
