Using COC(=O)c1c(C)cc(-c2cccc(C(F)(F)F)c2)nc1OC to produce Cc1cc(-c2cccc(C(F)(F)F)c2)[nH]c(=O)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.