Using CCCC[Sn](Cl)(CCCC)CCCC, Cc1nc(I)cn1-c1ccccc1 to produce CCCC[Sn](CCCC)(CCCC)c1cn(-c2ccccc2)c(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.