Using CCCCn1cc(C(C)(C)C)s/c1=N\C(=O)c1cc(Cl)ccc1F, OCC(F)(F)F to produce CCCCn1cc(C(C)(C)C)s/c1=N\C(=O)c1cc(Cl)ccc1OCC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.