Using CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)N[C@H]1CC[C@@H](C)N(C(=O)OCc2ccccc2)C[C@@H]1O to produce CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)N[C@H]1CC[C@@H](C)NC[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.