Using CCOC(=O)c1cnc(-c2cccc(C(F)(F)F)c2)nc1C1CC1 to produce OCc1cnc(-c2cccc(C(F)(F)F)c2)nc1C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.