Using CCOC(=O)C(Cc1ccccc1)C(O)(CCc1ccccc1)C(=O)OCC to produce O=C(O)C(Cc1ccccc1)C(O)(CCc1ccccc1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.