Using CSc1cccc(N)c1, COC(=O)c1c(C#N)cc(Cl)nc1Cl to produce COC(=O)c1c(C#N)cc(Cl)nc1Nc1cccc(SC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.