Using CCOC(=O)C(C(=O)OCC)N(Cc1ccccc1)Cc1ccc(OC)cc1OC to produce CCOC(=O)C(NCc1ccc(OC)cc1OC)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.