Using O=C(OC1CCCC1)C(Cc1ccc(OCc2ccccc2)cc1)OC1CCCC1 to produce O=C(OC1CCCC1)C(Cc1ccc(O)cc1)OC1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.