Using CC(C)c1cc2c(c(C3=CCCC3)c1C(O)c1ccc(C(F)(F)F)cc1)C(=O)CC1(CCC1)O2 to produce CC(C)c1cc2c(c(C3CCCC3)c1C(O)c1ccc(C(F)(F)F)cc1)C(=O)CC1(CCC1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.