Using CC(CNC(=O)Cc1ccccc1)NCC(OC(=O)C(=O)O)c1ccccc1 to produce CC(CNC(=O)Cc1ccccc1)NCC(O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.