Using BrCc1ccccc1, O=Cc1c(O)cc(OC2CCCCO2)cc1Br to produce O=Cc1c(Br)cc(OC2CCCCO2)cc1OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.