Using CCN(c1ccccc1)S(=O)(=O)c1ccc(-n2[nH]cc(CC(=O)O)c2=O)nc1, CCN(C(C)C)C(C)C to produce CCN(c1ccccc1)S(=O)(=O)c1ccc(-n2[nH]cc(CC(=O)NC)c2=O)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.