Using [N-]=[N+]=[N-], CSc1ncc2c(n1)N1CCC[C@H]1CN(c1cccc(C#N)c1)C2=O to produce CSc1ncc2c(n1)N1CCC[C@H]1CN(c1cccc(-c3nn[nH]n3)c1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.