Using O=C(NC1CCNCC1)c1ccccc1, BrCCC1=CCc2ccccc21 to produce O=C(NC1CCN(CCC2=CCc3ccccc32)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.