Using Cc1nc(-c2ccc(Cl)cc2)sc1C=O, COC(=O)c1cccc(N2CCCC(N)C2)c1 to produce COC(=O)c1cccc(N2CCCC(NCc3sc(-c4ccc(Cl)cc4)nc3C)C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.