Using C=CCc1ccc(OCCC(C)C)c2c(=O)cc(-c3nnn[nH]3)oc12, BrCc1ccccc1 to produce C=CCc1ccc(OCCC(C)C)c2c(=O)cc(-c3nnnn3Cc3ccccc3)oc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.