[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][C][C][=Branch1][C][=O][N]"}, {"from": "gpt", "value": "The molecule is a synthetic central nervous system stimulant with wakefulness-promoting activity. Modafinil appears to inhibit dopamine reuptake, resulting in an increase in extracellular dopamine.  This agent exhibits pronounced wakefulness-promoting activity (without sympathomimetic activity) and may improve cognitive function in certain clinical settings. (NCI04)"}]