Using Cc1ccc(N)c(C(=O)OC(C)(C)C)n1, O=C(OO)c1cccc(Cl)c1 to produce Cc1ccc(N)c(C(=O)OC(C)(C)C)[n+]1[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.