Using CCCN(CCC)C1CCc2c(cc3cc[nH]c3c2Br)C1, CN(C)C=O to produce CCCN(CCC)C1CCc2c(cc3c(C=O)c[nH]c3c2Br)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.