Using Fc1ccc2c(C3CCNCC3)n[nH]c2c1, BrCCc1ccccc1 to produce Fc1ccc2c(C3CCN(CCc4ccccc4)CC3)n[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.