Using CC1NCCN(CCc2ccc([N+](=O)[O-])cc2)C1=O, O=CCc1ccc([N+](=O)[O-])cc1 to produce CC1C(=O)N(CCc2ccc([N+](=O)[O-])cc2)CCN1CCc1ccc([N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.