Using COC(=O)Nc1cn2cc(Sc3ccc([N+](=O)[O-])cc3)ccc2n1 to produce COC(=O)Nc1cn2cc(Sc3ccc(N)cc3)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.