Using CCOC(=O)c1cc2n(n1)CCN(S(=O)(=O)c1ccccc1[N+](=O)[O-])C2 to produce CCOC(=O)c1cc2n(n1)CCNC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.