Using CSc1nc2nc(C)cc(Cl)n2n1, Nc1ccc(C(F)(F)F)c(F)c1 to produce CSc1nc2nc(C)cc(Nc3ccc(C(F)(F)F)c(F)c3)n2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.