Using COc1cc2ncnc(Nc3nc4ccc([N+](=O)[O-])cc4s3)c2cc1OC to produce COc1cc2ncnc(Nc3nc4ccc(N)cc4s3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.