Using Sc1ccccc1, COC(=O)Cc1nc(-c2ccc(Cl)nc2)oc1C to produce COC(=O)Cc1nc(-c2ccc(Sc3ccccc3)nc2)oc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.