Using BrC(Br)c1ccccc1C(Br)Br, O=C1C=CC(=O)C=C1 to produce O=C1c2cc3ccccc3cc2C(=O)c2cc3ccccc3cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.