Using O=C(O)COc1ccc(CCCCNC(=O)OCc2ccccc2)cc1, Nc1ccccc1 to produce O=C(COc1ccc(CCCCNC(=O)OCc2ccccc2)cc1)Nc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.