Using CCOC(=O)C(=O)CBr, O=C1CC(=O)CC(c2ccccc2)C1 to produce CCOC(=O)c1coc2c1C(=O)CC(c1ccccc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.