Using COC(=O)CCCCCNC(=O)C=C1c2ccccc2-c2ccccc21 to produce O=C(O)CCCCCNC(=O)C=C1c2ccccc2-c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.