Using CCS, COc1c(F)cc(F)cc1C(Nc1cccc2nc(C)ccc12)C(O)(CBr)C(F)(F)F to produce CCSCC(O)(C(Nc1cccc2nc(C)ccc12)c1cc(F)cc(F)c1OC)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.