Using O=C(Cl)OC(Cl)(Cl)Cl, CS(=O)(=O)c1cc(N)ccc1OC(F)(F)F to produce CS(=O)(=O)c1cc(N=C=O)ccc1OC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.