Using CCOC(=O)C1=C(c2ccccc2)c2ccccc2C1=O, COc1ccc(Br)cc1 to produce COc1ccc(C2c3ccccc3C(c3ccccc3)C2C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.