Using FC(F)(F)c1ccc(Cl)nc1, Oc1ccc(N2CCNCC2)cc1 to produce Oc1ccc(N2CCN(c3ccc(C(F)(F)F)cn3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.