Using O=S1(=O)NC(CNCCO)Cc2ccc(C(F)(F)F)cc21, O=C(Cl)OCc1ccccc1 to produce O=C(OCc1ccccc1)N(CCO)CC1Cc2ccc(C(F)(F)F)cc2S(=O)(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.