Using [N-]=[N+]=[N-], CCCc1nnc(COC)n1Cc1ccc(-c2ccccc2C#N)cc1 to produce CCCc1nnc(COC)n1Cc1ccc(-c2ccccc2-c2nnn[nH]2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.