Using COc1ccc(CNC(=O)c2cc([N+](=O)[O-])ccc2NC2CCCN(C(=O)OC(C)(C)C)C2)cc1OC to produce COc1ccc(CNC(=O)c2cc([N+](=O)[O-])ccc2NC2CCCNC2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.