Using FC(F)(F)c1cccc2nc(S)[nH]c12, COc1ccnc(CCl)c1 to produce COc1ccnc(CSc2nc3c(C(F)(F)F)cccc3[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.