Using BrCc1ccccc1, N#Cc1nn(-c2ccccc2)c(=O)[nH]c1=O to produce N#Cc1nn(-c2ccccc2)c(=O)n(Cc2ccccc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.