Using O=C(OCc1ccccc1)ON1C(=O)CCC1=O, O=C(O)CNCC(=O)O to produce O=C(O)CN(CC(=O)O)C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.