Using BrCc1ccccc1, O=S(c1ccccc1)c1c[nH]c2ccccc12 to produce O=S(c1ccccc1)c1cn(Cc2ccccc2)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.