Using Cn1c2ccccc2c2c3c(c4c5ccccc5n(CCCCN=[N+]=[N-])c4c21)C(=O)NC3=O to produce Cn1c2ccccc2c2c3c(c4c5ccccc5n(CCCCN)c4c21)C(=O)NC3=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.