Using COC(=O)C(Cc1ccccc1)NC(=O)CCc1ccc(O)cc1 to produce O=C(CCc1ccc(O)cc1)NC(Cc1ccccc1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.