Using OCCO, COc1cc(CCCCCCC=O)ccc1OCc1nc(-c2ccccc2)oc1C to produce COc1cc(CCCCCCC2OCCO2)ccc1OCc1nc(-c2ccccc2)oc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.