Using COC(=O)c1ccc(-c2ccc(OC)cc2)c(-c2ccc(OC)cc2)c1 to produce OCc1ccc(-c2ccc(O)cc2)c(-c2ccc(O)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.