Using CS(=O)(=O)Nc1ccc2c(c1)CCN2CC(=O)OCc1ccccc1 to produce CS(=O)(=O)Nc1ccc2c(c1)CCN2CC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.