Using O=C(O)CCC(O)c1ccc(-c2ccccc2[N+](=O)[O-])cc1 to produce Nc1ccccc1-c1ccc(C(O)CCC(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.