Using BrBr, COc1ccc(C(=O)c2c(Cl)cccc2Cl)c(C)c1 to produce COc1cc(C)c(C(=O)c2c(Cl)cccc2Cl)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.