Using Cn1cc(C(=O)NCc2ccc(Cl)cc2)c(=O)c2cc(I)ccc21, CCCCC([SnH3])=C(CCCC)CCCC to produce C=Cc1ccc2c(c1)c(=O)c(C(=O)NCc1ccc(Cl)cc1)cn2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.