Using CC(=O)N1CCN(c2cc(C)c(N)c([N+](=O)[O-])c2)CC1 to produce CC(=O)N1CCN(c2cc(C)c(N)c(N)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.