[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is one of the most potent and toxic of the long-acting local anesthetics and its parenteral use is restricted to spinal anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1006)"}, {"from": "gpt", "value": "[C][C][C][C][O][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][Ring2][=C][Ring1][#Branch2][C][=Branch1][C][=O][N][C][C][N][Branch1][Ring1][C][C][C][C]"}]