Using O=[N+]([O-])c1ccc2c(c1)[nH]c1cc([N+](=O)[O-])ccc12 to produce Nc1ccc2c(c1)[nH]c1cc(N)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.