Using CC(C)(C)OC(=O)NCCN(C(=O)OC(C)(C)C)c1ccc(CC(=O)O)c[n+]1[O-] to produce CC(C)(C)OC(=O)NCCN(C(=O)OC(C)(C)C)c1ccc(CC(=O)O)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.