Using CC(C)(O)C(Br)CC(Br)(Br)Br, CC(=O)CC(=O)[O-] to produce CC(=O)C1C(=O)OC(C)(C)C1C=C(Br)Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.