Using FC(F)(F)c1cnc(Cl)nc1Cl, CNC(=O)c1ccc(N)cc1 to produce CNC(=O)c1ccc(Nc2ncc(C(F)(F)F)c(Cl)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.