Using Nc1c(I)cc([N+](=O)[O-])cc1I, [N-]=[N+]=[N-] to produce [N-]=[N+]=Nc1c(I)cc([N+](=O)[O-])cc1I, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.