Using O=S(=O)(c1ccccc1)n1cc(Cc2sc(NCc3cncc(F)c3)nc2Cl)c2cc(Cl)cnc21 to produce Fc1cncc(CNc2nc(Cl)c(Cc3c[nH]c4ncc(Cl)cc34)s2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.