Using O=Cc1ccccc1, CCOC(=O)C(N)CCOc1ccc(OC(C)(C)C(=O)OCC)cc1 to produce CCOC(=O)C(CCOc1ccc(OC(C)(C)C(=O)OCC)cc1)NCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.