[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][N][C][=C][Branch1][=C][C][=Branch1][C][=O][N][Branch1][Branch1][C][Ring1][#Branch1][=O][C][C][N][Branch2][Ring1][=Branch2][C][=Branch1][Ring2][=N][Ring1][N][/C][=C][/C][=C][C][=Branch1][#Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][O][C][C]"}, {"from": "gpt", "value": "The molecule is an adenosine receptor antagonist that is used as adjunctive therapy to levodopa/carbidopa in patients with Parkinson disease experiencing difficulty with \u201coff\u201d episodes when motor symptoms breakthrough on treatment. Istradefylline has been associated with a low rate of serum enzyme elevations during therapy, but has not been linked to cases of clinically apparent liver injury with jaundice."}]