Using CC(C)(C)OC(=O)N[C@@H](CO)C(=O)OCc1ccc([N+](=O)[O-])cc1, COC(=O)[C@H](C)N to produce COC(=O)[C@H](C)NC(=O)[C@H](CO)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.