Using CC(C)(C)[O-], CCOC(=O)CCC1CCC(C2CCC(C=O)CC2)CC1 to produce C=CC1CCC(C2CCC(CCC(=O)OCC)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.