[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a radioactive diagnostic agent for positron emission tomography (PET) imaging of pat ients with suspected prostate cancer recurrence and non-informative bone scintigraphy, computerized tomography (CT) or magnetic resonance imaging."}, {"from": "gpt", "value": "[C][N+1][Branch1][C][C][Branch1][C][11CH3][C][C][O]"}]