Using OCC(F)(F)F, CSc1nc(Cl)c(C#N)c(N2CCC(c3ccccc3)CC2)n1 to produce CSc1nc(OCC(F)(F)F)c(C#N)c(N2CCC(c3ccccc3)CC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.