Using O=S(=O)(CC1CCC(c2cc(F)ccc2F)(S(=O)(=O)c2ccc(Cl)cc2)CC1)N1CC(O)C1 to produce O=C1CN(S(=O)(=O)CC2CCC(c3cc(F)ccc3F)(S(=O)(=O)c3ccc(Cl)cc3)CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.