Using CCOC(=O)c1cc(N)nc(Cl)c1, O=C(C(Br)CC1CCC(F)(F)CC1)C(F)(F)F to produce CCOC(=O)c1cc(Cl)n2c(CC3CCC(F)(F)CC3)c(C(F)(F)F)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.