Using CCOC(=O)c1ccc(CC(=O)NC(C(=O)OCC)c2ccccc2N2CCCCC2)cc1OCC to produce CCOc1cc(CC(=O)NC(C(=O)O)c2ccccc2N2CCCCC2)ccc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.