Using CC(=O)O, CCN(CC)C(=O)N[C@H]1C[C@@H]2c3cc(N)cc4[nH]cc(c34)C[C@H]2N(C)C1 to produce CCN(CC)C(=O)N[C@H]1C[C@@H]2c3cc(NC)cc4[nH]cc(c34)C[C@H]2N(C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.