Using COC1=CC(=O)C=CC1=O, Cc1c(C)c(Br)c(Br)c(Br)c1Br to produce COC1=CC(=O)c2cc3ccccc3cc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.