Using CCOC(=O)C(CCc1ccccc1)NC1CCc2ccccc2N(CC(=O)OCc2ccccc2)C1=O to produce CCOC(=O)C(CCc1ccccc1)NC1CCc2ccccc2N(CC(=O)O)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.