Using Cc1nc(-c2ccccc2)c(-c2ccccc2)[nH]1, BrCCCCCBr to produce Cc1nc(-c2ccccc2)c(-c2ccccc2)n1CCCCCBr, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.