Using CNCCN(C)C, COc1ccccc1-c1c[nH]c2ncc(-c3cccc(C(=O)O)c3)cc12 to produce COc1ccccc1-c1c[nH]c2ncc(-c3cccc(C(=O)N(C)CCN(C)C)c3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.