Using Cn1c2cccc(Br)c2c2c(CC(=O)O)nn(-c3ccccc3)c(=O)c21, C1CCNC1 to produce Cn1c2cccc(Br)c2c2c(CC(=O)N3CCCC3)nn(-c3ccccc3)c(=O)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.