Using C[C@H]1CCN(c2ncc([N+](=O)[O-])c(N)n2)C[C@H]1C(=O)N1CCCC1 to produce C[C@H]1CCN(c2ncc(N)c(N)n2)C[C@H]1C(=O)N1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.