Using CCC(CC)c1ccc(Cl)c2nc3n(c12)CCN3c1ccc(Cl)cc1Br, CN(C)C=O to produce CCC(CC)c1cccc2[nH]c(=O)[nH]c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.