Using CCOC(=O)COc1ccc(C(C)=O)cc1OCC(=O)OCC, BrBr to produce CCOC(=O)COc1ccc(C(=O)CBr)cc1OCC(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.