Using C[Sn](C)(C)Cl, CCCCCCCCc1c2ccsc2c(CCCCCCCC)c2ccsc12 to produce CCCCCCCCc1c2cc([Sn](C)(C)C)sc2c(CCCCCCCC)c2cc([Sn](C)(C)C)sc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.