On August 31, 1990, Frank, I.; Zeller, M. published an article.Formula: C10H11N3O3S The title of the article was 5-Amino-4-cyano-1-(hetero)arylimidazoles. And the article contained the following:
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. The experimental process involved the reaction of 2-Aminomalononitrile 4-methylbenzenesulfonate(cas: 5098-14-6).Formula: C10H11N3O3S
The Article related to aminocyanoheteroarylimidazole, imidazole aminocyanoheteroaryl, formimidate aminomalodinitrile cyclocondensation, Heterocyclic Compounds (More Than One Hetero Atom): Imidazoles and other aspects.Formula: C10H11N3O3S
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts