Using O=C(C=Cc1ccc(OC2CCCCO2)cc1)c1ccc(OC2CCCCO2)cc1O to produce O=C(C=Cc1ccc(O)cc1)c1ccc(O)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.