Using Cn1c(NCCN(CCCc2ccc([N+](=O)[O-])cc2)C(=O)OC(C)(C)C)cc(=O)n(C)c1=O to produce Cn1c(NCCNCCCc2ccc([N+](=O)[O-])cc2)cc(=O)n(C)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.