Using CC(c1ccc(O)cc1Cl)C(O)(c1ccc2oc(=O)n(C)c2c1)C(F)(F)F, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1ccc(C(C)C(O)(c2ccc3oc(=O)n(C)c3c2)C(F)(F)F)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.