Using BrCCCBr, CC(C)c1c(S(=O)(=O)c2ccc(O)cc2)c2ccccc2n1C to produce CC(C)c1c(S(=O)(=O)c2ccc(OCCCBr)cc2)c2ccccc2n1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.