Using O=S(=O)(Cl)c1ccc(Cl)s1, N[C@@H](CCC(F)(F)F)C(=O)O to produce O=C(O)[C@H](CCC(F)(F)F)NS(=O)(=O)c1ccc(Cl)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.