Using Oc1ccc(C(F)(F)F)cc1I, CCCC[Sn](CCCC)(CCCC)c1ccnnc1 to produce Oc1ccc(C(F)(F)F)cc1-c1ccnnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.