Using CCOC(=O)c1ccccc1-c1ccc(CC2CCN(C3CCCCC3)C2=O)c(Cl)c1 to produce O=C(O)c1ccccc1-c1ccc(CC2CCN(C3CCCCC3)C2=O)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.