POLYMORPHS OF ESZOPICLONE MALATE

摘要

The present invention provides crystalline Eszopiclone malate form II, crystalline Eszopiclone form V, processes from preparing the crystalline Eszopiclone malate form II or V, pharmaceutical compositions comprising the crystalline Eszopiclone malate form II or V and methods of treating insomnia comprising administering the crystalline Eszopiclone malate form II or V.