[{"from": "human", "value": "What can you tell me about this molecule? [C][C@][Branch1][=N][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is used to control the symptoms of excessive sympathetic stimulation in patients with pheochromocytoma. (Martindale, The Extra Pharmacopoeia, 30th ed)"}]