Using COc1ccc(Cl)c(C(C)C(O)(c2ccc3oc(=O)n(C)c3c2)C(F)(F)F)c1 to produce CC(c1cc(O)ccc1Cl)C(O)(c1ccc2oc(=O)n(C)c2c1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.