Using Nc1ccc(Cl)c(Cl)c1, CC(C)(C)OC(=O)N1CCc2c(sc3ncnc(Cl)c23)C1 to produce Clc1ccc(Nc2ncnc3sc4c(c23)CCNC4)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.