Using CCN(CC)CC(O)CNc1ccc(NCC(O)CCl)c2c1C(=O)c1ccccc1C2=O to produce CCN(CC)CC(O)CNc1ccc(NCC2CO2)c2c1C(=O)c1ccccc1C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.