Using CCCC[Sn](Cl)(CCCC)CCCC, C=CCN(C)Cc1ccc(I)c(C(OCOC)(C(F)(F)F)C(F)(F)F)c1 to produce C=CCN(C)Cc1ccc([Sn](CCCC)(CCCC)CCCC)c(C(OCOC)(C(F)(F)F)C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.