Using [Li]C, CON(C)C(=O)c1sc(C(F)(F)F)c2c1CCC(C)(C)C2 to produce CC(=O)c1sc(C(F)(F)F)c2c1CCC(C)(C)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.