Using Oc1ccc2c(c1)CN(c1cc(Cl)c3ccccc3n1)CCC2, CCBr to produce CCOc1ccc2c(c1)CN(c1cc(Cl)c3ccccc3n1)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.