Using CCOC(=O)N1CCC(c2c[nH]c3ccccc23)CC1, BrCC1CC1 to produce CCOC(=O)N1CCC(c2cn(CC3CC3)c3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.