Using BrCc1ccccc1, Cc1[nH]nc2c1c(=O)[nH]c1cc3c(cc12)CCCC3 to produce Cc1c2c(=O)[nH]c3cc4c(cc3c2nn1Cc1ccccc1)CCCC4, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.