Using O=C1C2CCC1CN(Cc1ccccc1)C2, Brc1cccc(Br)c1 to produce OC1(c2cccc(Br)c2)C2CCC1CN(Cc1ccccc1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.