Using CCN(CC)CC, CC(C)(C)OC(=O)N1CCC(Oc2ccc([N+](=O)[O-])cc2C(=O)O)CC1 to produce CC(C)(C)OC(=O)N1CCC(Oc2ccc([N+](=O)[O-])cc2C(N)=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.