Using CONC(=O)c1ccc(C(=O)C(C)(C)C)cc1, CC(C)(C)C(=O)c1ccc(C(=O)Cl)cc1 to produce CON(C(=O)c1ccc(C(=O)C(C)(C)C)cc1)C(=O)c1ccc(C(=O)C(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.