Using CCOC(=O)c1ncc2[nH]c3ccc(C(=O)OCc4ccccc4)cc3c2c1CC to produce CCOC(=O)c1ncc2[nH]c3ccc(C(=O)O)cc3c2c1CC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.