Using FC(F)(F)c1cccc(N2CCN(CCCCl)CC2)c1, Cn1cnnc1S to produce Cn1cnnc1SCCCN1CCN(c2cccc(C(F)(F)F)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.