[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a Central Nervous System Stimulant. The physiologic effect of dextroamphetamine is by means of Central Nervous System Stimulation."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N]"}]