Using COc1ccc2c(c1)n(C)c(=O)n2CCC(C)(C)[N+](=O)[O-] to produce COc1ccc2c(c1)n(C)c(=O)n2CCC(C)(C)N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.