Using CC(C)(C)OC(=O)N1CCC(CCN)CC1, BrCCC(c1ccccc1)c1ccccc1 to produce CC(C)(C)OC(=O)N1CCC(CCNCCC(c2ccccc2)c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.