Using C=C[Sn](C=C)(C=C)C=C, Cc1ccc(S(=O)(=O)n2cc(I)c3c(Nc4ccc5cn[nH]c5c4)nc(Cl)nc32)cc1 to produce C=Cc1cn(S(=O)(=O)c2ccc(C)cc2)c2nc(Cl)nc(Nc3ccc4cn[nH]c4c3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.