Using CCCC[Sn](CCCC)(CCCC)c1ccccn1, Cn1cc(I)c2c(=O)n(CC(F)(F)F)cnc21 to produce Cn1cc(-c2ccccn2)c2c(=O)n(CC(F)(F)F)cnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.