Using COC(=O)c1c(CBr)sc2c1c(=O)n(C)c(=O)n2CC(C)C, Cc1nc(Cl)c(Cl)[nH]1 to produce COC(=O)c1c(Cn2c(C)nc(Cl)c2Cl)sc2c1c(=O)n(C)c(=O)n2CC(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.