Using COCOCc1cccc(-c2ccc3ccc4ccc(-c5cccc(COCOC)n5)nc4c3n2)n1 to produce OCc1cccc(-c2ccc3ccc4ccc(-c5cccc(CO)n5)nc4c3n2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.