Using O=C(NC(O)C(=O)O)OCc1ccccc1, COc1ccccc1C to produce COc1ccc(C(NC(=O)OCc2ccccc2)C(=O)O)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.