| abstract |
Provided are compounds, pharmaceutical acceptable salts, polymorphs, solvates, enantiomers, stereoisomers and hydrates thereof. The pharmaceutical compositions comprising the compounds may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup or injection, and may be used for the treatment of neurologic diseases, such as depression, Alzheimer's disease, multiple sclerosis, Batten disease, Parkinson's disease and restless legs syndrome. |