Using CCCC[Sn](Cl)(CCCC)CCCC, FC(F)Oc1ccc2[nH]nc(I)c2c1 to produce CCCC[Sn](CCCC)(CCCC)c1n[nH]c2ccc(OC(F)F)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.