Using O=C(O)c1cc(O)c(Br)c(O)c1, BrCc1ccccc1 to produce O=C(OCc1ccccc1)c1cc(OCc2ccccc2)c(Br)c(OCc2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.