Using COC(=O)c1nn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)c(O)c1SC(F)(F)F, CCOS(=O)(=O)OCC to produce CCOc1c(SC(F)(F)F)c(C(=O)OC)nn1-c1c(Cl)cc(C(F)(F)F)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.