Using CS(=O)c1[nH]ccc1[N+](=O)[O-], N=C(N)Nc1nc(CSCCN)cs1 to produce N=C(N)Nc1nc(CSCCNc2[nH]ccc2[N+](=O)[O-])cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.