Frank, I. published the artcile5-Amino-4-cyano-1-(hetero)arylimidazoles, Synthetic Route of 5098-14-6, the publication is Synthetic Communications (1990), 20(16), 2519-26, database is CAplus.
Title compounds I (R = 2-pyridyl, 3-pyridyl, 2-pyrimidinyl, 2-ClC6H4, 4-ClC6H4, 2,4-Cl2C6H3, 2,4-Me2C6H3, 5-chloro-2-pyridyl, 3,5-dichloro-2-pyridyl, 2-chloro-3-pyridyl) were prepared by the cyclocondensation of RN:CHOEt with NCCH(NH2)CN.p-MeC6H4SO3H.
Synthetic Communications published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C10H11N3O3S, Synthetic Route of 5098-14-6.
Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts