Using CI, COC(=O)c1cc(C)c(-c2ccc(OC)c(Br)c2)[nH]1 to produce COC(=O)c1cc(C)c(-c2ccc(OC)c(Br)c2)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.