Using OCc1cnc(Br)s1, CC1(C)C(=O)C=C(Cl)C(C)(C)C1=O to produce CC1(C)C(=O)C=C(OCc2cnc(Br)s2)C(C)(C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.