Using Cn1cc([N+](=O)[O-])cc([N+](=O)[O-])c1=O, CN1CCCC(=O)C1 to produce CN1CCc2cc([N+](=O)[O-])cnc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.