Using CSc1nc(Cl)cc(C(F)(F)F)n1, CSc1ccc(B(O)O)cc1 to produce CSc1ccc(-c2cc(C(F)(F)F)nc(SC)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.