Using O=S(=O)(Nc1cccc2cc(C3=NCC(CN4CCOCC4)S3)[nH]c12)c1cccs1, FC(F)I to produce O=S(=O)(c1cccs1)N(c1cccc2cc(C3=NCC(CN4CCOCC4)S3)[nH]c12)C(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.