Using CC(=O)N(Cc1cc(C(F)(F)F)cc(C(F)(F)F)c1)C1CCCNc2c(Br)cc(C(F)(F)F)cc21, CB(O)O to produce CC(=O)N(Cc1cc(C(F)(F)F)cc(C(F)(F)F)c1)C1CCCNc2c(C)cc(C(F)(F)F)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.