PREPARATION METHOD FOR POLYMORPHIC 6-(4-CHLOROPHENOXY)-TETRAZOLO[5,1-A]PHTHALAZINE AND USE THEREOF
申请人:Jilin Yinglian Shangde Science and Technology
Development Co., Ltd.
公开号:EP3002286A1
公开(公告)日:2016-04-06
The present invention discloses processes for preparing polymorphic forms of 6-(4-chlorophenoxy)-tetrazolo[5,1-a]phthalazine, and use thereof. Those novel crystalline forms were fully characterized by using X-ray powder diffraction, thermogravimetric analysis, differential scanning calorimetry, Infrared spectroscopy, Raman spectroscopy, hygroscopicity analysis, and etc. The four novel crystalline forms were compared in terms of their stability, hygroscopicity and solubility, providing reference for the selection of the most preferred solid state of 6-(4-chlorophenoxy)-tetrazolo[5,1-a]phthalazine to be used for drug development. The processes for preparing the novel crystalline forms of 6-(4-chlorophenoxy)-tetrazolo[5,1-a]phthalazine of the present invention are simple, easy to control, and have excellent reproducibility, such that the desired crystal forms can be obtained steadily.
本发明公开了 6-(4-氯苯氧基)-四唑并[5,1-a]酞嗪多晶型的制备工艺及其用途。本发明采用 X 射线粉末衍射、热重分析、差示扫描量热法、红外光谱、拉曼光谱、吸湿性分析等方法对这些新型结晶形式进行了全面表征。比较了四种新型晶体的稳定性、吸湿性和溶解性,为选择最理想的 6-(4-氯苯氧基)-四唑并[5,1-a]酞嗪固态用于药物开发提供了参考。本发明制备 6-(4-氯苯氧基)-四唑并[5,1-a]酞嗪的新型结晶形式的工艺简单、易于控制,并且具有良好的可重复性,因此可以稳定地获得所需的结晶形式。