Using CCOc1cccc(-c2nccc3[nH]c(C(=O)OC)cc23)c1, BrCCBr to produce CCOc1cccc(-c2nccc3c2cc(C(=O)OC)n3CCBr)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.