Using Nc1ccc(C(c2ccccc2)n2ccnc2)cc1N, O=N[O-] to produce c1ccc(C(c2ccc3[nH]nnc3c2)n2ccnc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.