POLYMORPHS OF N-METHYL-N-(3-{3-[2-THIENYLCARBONYL]-PYRAZOL-[1,5- alpha ]-PYRIMIDIN-7-YL}PHENYL)ACETAMIDE AND COMPOSITIONS AND METHODS RELATED THERETO

摘要

Polymorphs of N-methyl-N-(3-{3-[2-thienylcarbonyl]-pyrazol-[1,5- alpha ]-pyrimidin-7-yl}phenyl)acetamide (Compound (1)), and use of the same as a sedative-hypnotic, anxiolytic, anticonvulsant, and skeletal muscle relaxant agent. Processes for making the same, as well as related compositions and methods are also disclosed, particularly with regard to treatment of insomnia. A polymorph Form I possessing exception physical and heat stability is provided. A polymorph Form II.