Using CCCC[Sn](CCCC)(CCCC)c1ccccn1, O=C(Nc1cnc(-c2ccncc2Cl)c(Cl)n1)C1CC1 to produce O=C(Nc1cnc(-c2ccncc2Cl)c(-c2ccccn2)n1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.