Using CCOC(=O)C(Cc1ccc(Br)cc1)(Cc1ccc(Br)cc1)C(C)=O to produce CC(=O)C(Cc1ccc(Br)cc1)Cc1ccc(Br)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.