Using CCOC(=O)c1ccc(-c2cccc(C(=O)Nc3ccc(N4CCOCC4)cc3)c2)cc1 to produce O=C(O)c1ccc(-c2cccc(C(=O)Nc3ccc(N4CCOCC4)cc3)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.