Using CC1(C)C(=O)Nc2cc(NC(=O)c3ccco3)c(N)cc21 to produce CC1(C)C(=O)Nc2cc3[nH]c(-c4ccco4)nc3cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.