Using Clc1nc(Cl)c2sccc2n1, COC(=O)c1ccccc1-c1ccc(CN)cc1 to produce COC(=O)c1ccccc1-c1ccc(CNc2nc(Cl)nc3ccsc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.