Using CCOP(=O)(OCC)c1ccc(C(C(=O)OC)c2ccccc2)cc1 to produce CCOP(=O)(OCC)c1ccc(C(C(=O)O)c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.