Using COC(=O)CCN, Cc1cc2ccccc2nc1NC(c1ccc(C(=O)O)cc1)C1CC(C)(C)C1 to produce COC(=O)CCNC(=O)c1ccc(C(Nc2nc3ccccc3cc2C)C2CC(C)(C)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.