Using CCCC[Sn](CCCC)(CCCC)c1sc(-c2cccnc2)nc1C, O=C1CCCc2ccc(Cl)nc21 to produce Cc1nc(-c2cccnc2)sc1-c1ccc2c(n1)C(=O)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.