Using CCOC(=O)C(=O)c1ccc(OCCCOc2ccc(C(C)=O)c(O)c2)cc1 to produce CC(=O)c1ccc(OCCCOc2ccc(C(=O)C(=O)O)cc2)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.