Using CCCCCCCC(O)CCC(=O)[O-], O=C(CBr)c1ccc2ccccc2c1 to produce CCCCCCCC(O)CCC(=O)OCC(=O)c1ccc2ccccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.