Using O=C(O)C(F)(F)S(=O)(=O)F, COC(=O)C(CO)N(Cc1ccccc1)Cc1ccccc1 to produce COC(=O)C(COC(F)F)N(Cc1ccccc1)Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.