Using OC(c1ccnc2cc(Cl)ccc12)C(F)(F)F, CS(=O)(=O)c1ncc(F)cn1 to produce Fc1cnc(OC(c2ccnc3cc(Cl)ccc23)C(F)(F)F)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.