Using N#Cc1ccc(CBr)cc1, Cc1c(-c2cccnc2)[nH]c2ccccc12 to produce Cc1c(-c2cccnc2)n(Cc2ccc(C#N)cc2)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.