Using CCOC(=O)n1c(C(=O)c2ccccc2)c(N)c2ccc(Cl)cc21 to produce Nc1c(C(=O)c2ccccc2)[nH]c2cc(Cl)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.