Using O=C([O-])[O-], COC(=O)c1n[nH]c2cc(C(F)(F)F)ccc12 to produce COC(=O)c1nn(C)c2cc(C(F)(F)F)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.