Using O=C(Cl)Cl, CNc1nc(SC)ncc1CNc1c(F)cccc1F to produce CSc1ncc2c(n1)N(C)C(=O)N(c1c(F)cccc1F)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.