Using CC1CN=C(c2ccc([N+](=O)[O-])cc2)N(C(=O)OC(C)(C)C)C1 to produce CC1CN=C(c2ccc(N)cc2)N(C(=O)OC(C)(C)C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.