Using O=C1CCc2ccc(Br)cc2C1Cc1ccccc1, CCC(N)=O to produce CCC(=O)NC1=C(Cc2ccccc2)c2cc(Br)ccc2CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.