Using CC(C)(C)OC(=O)N1CCN2C[C@@H](C(=O)O)C[C@H]2C1, NC(c1ccccc1)c1ccccc1 to produce CC(C)(C)OC(=O)N1CCN2C[C@@H](C(=O)NC(c3ccccc3)c3ccccc3)C[C@H]2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.