Using Nc1nc(Cl)ccc1[N+](=O)[O-], CC(C)(C)OC(=O)N1CCNCC1 to produce CC(C)(C)OC(=O)N1CCN(c2cnc(N)c([N+](=O)[O-])c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.