Using CCOC(=O)c1ccc(-c2nc(C(C)(C)N)cs2)cc1, O=C(Cl)c1ccccc1 to produce CCOC(=O)c1ccc(-c2nc(C(C)(C)NC(=O)c3ccccc3)cs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.