Using CCOC(=O)c1nc2cc(N3CCOCC3)ccc2cc1NC(=O)OCc1ccccc1 to produce O=C(Nc1cc2ccc(N3CCOCC3)cc2nc1C(=O)O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.