Using Cc1nc(-[n+]2nc(-c3ccccc3)nn2-c2ccccc2)sc1C to produce Cc1nc(N2N=C(c3ccccc3)[NH2+]N2c2ccccc2)sc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.