Using CCn1c(C)nc2cc(S(C)(=O)=O)c(Cl)c([N+](=O)[O-])c21 to produce CCn1c(C)nc2cc(S(C)(=O)=O)c(Cl)c(N)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.