You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule has Burnt, hydrocarbon odor. Please represent the molecule in SMILES.
user
CCC1CCC(CCC(=O)[O-])C1.CCC1CCC(CCC(=O)[O-])CC1.[Cu+2]
assistant