Using COC(=O)c1cccc(COC[C@H](N)C(=O)NC(=O)OC(C)(C)C)c1 to produce COC(=O)c1cccc(COC[C@H](N)C(N)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.