Using OCCC(F)(F)F, CC(C)(C)C(=O)Nc1cccc(CCl)n1 to produce CC(C)(C)C(=O)Nc1cccc(COCCC(F)(F)F)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.