Using O=C(O)c1oc(=O)c2ccc(Br)cc2c1-c1ccccc1, CC1(C)OC(=O)CC(=O)O1 to produce CC(=O)c1oc(=O)c2ccc(Br)cc2c1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.