Using CC(C)CC(C(=O)OCC1CC1)c1cc(Cl)c(-c2ccc(C(F)(F)F)cc2)c(OCC2CC2)c1 to produce CC(C)CC(C(=O)O)c1cc(Cl)c(-c2ccc(C(F)(F)F)cc2)c(OCC2CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.