Using COC(=O)c1c(NS(=O)(=O)c2ccc(F)cc2CN(C)C(=O)C(F)(F)F)ccc2c1OCC1CC21 to produce CNCc1cc(F)ccc1S(=O)(=O)Nc1ccc2c(c1C(=O)OC)OCC1CC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.