Using CCOC(=O)CC[C@H](NC(=O)c1ccc([N+](=O)[O-])c(C)c1)C(=O)OCC to produce CCOC(=O)CC[C@H](NC(=O)c1ccc(N)c(C)c1)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.