发明授权
US07348429B2 Process for purifying N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide(zaleplon) and crystalline forms of zaleplon accessible with the process 失效
纯化N- [3-(3-氰基吡唑并[1,5-a]嘧啶-7-基)苯基] -N-乙基乙酰胺(zaleplon)的方法和可通过该方法获得的扎来普隆的结晶形式

Process for purifying N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide(zaleplon) and crystalline forms of zaleplon accessible with the process
摘要:
Provided are novel Zaleplon crystalline Forms II, III, IV and V, which are useful for the treatment of insomnia. Also provided are processes for making Forms I, II, and V using precipitation methods.
信息查询
0/0