Using COc1nn(C2CN(C(=O)OC(C)(C)C)C2)cc1[N+](=O)[O-] to produce COc1nn(C2CN(C(=O)OC(C)(C)C)C2)cc1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.