Using CC(Br)CO, CCOC(=O)c1ccc2c(Br)n[nH]c(=O)c2c1 to produce CCOC(=O)c1ccc2c(Br)nn(C(C)C)c(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.