Using C=C[Sn](CCCC)(CCCC)CCCC, CC(C)(C)c1ccc(CNC(=O)NCc2cc(F)c(N)c(I)c2)cc1 to produce C=Cc1cc(CNC(=O)NCc2ccc(C(C)(C)C)cc2)cc(F)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.