Using CC(C)(CCBr)CCBr, CCOC(=O)c1[nH]c(-c2ccccc2)c2cc(Cl)ccc12 to produce CCOC(=O)c1c2ccc(Cl)cc2c(-c2ccccc2)n1CCC(C)(C)CCBr, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.