Using [N-]=[N+]=[N-], Cc1c(Cc2ccccc2)c2cc(-c3ccc(OCC#N)cc3)ccc2n1C to produce Cc1c(Cc2ccccc2)c2cc(-c3ccc(OCc4nnn[nH]4)cc3)ccc2n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.