Using CNc1ccc(C(=O)C2(CC(=O)OC)CCCCC2)cc1[N+](=O)[O-] to produce CNc1ccc(C(=O)C2(CC(=O)OC)CCCCC2)cc1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.