Using CCCN(Cc1ccc(-c2ccccc2C(=O)C(=O)OC)cc1)c1ncccc1C(=O)OCC to produce CCCN(Cc1ccc(-c2ccccc2C(=O)C(=O)O)cc1)c1ncccc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.