Using O=C1C(=Cc2ccc(Cl)cc2)Cc2ccccc21, O=C1CCC(=O)N1Br to produce O=C1C(=Cc2ccc(Cl)cc2)C(Br)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.