Using O=S(=O)(N1CCC(F)CC1)C1(c2cc(F)ccc2F)CCC2(CC1)OCCO2 to produce O=C1CCC(c2cc(F)ccc2F)(S(=O)(=O)N2CCC(F)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.