Using BrCCOc1ccccc1, O=C(Oc1ccccc1)c1ccc(O)cc1 to produce O=C(Oc1ccccc1)c1ccc(OCCOc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.