has role antiviral agent cyanopyridine diamine dichlorobenzene imidazoles aminopyridine aminopyrimidine secondary amino compound CHIR 99021 CHEBI:91091 A member of the class of aminopyrimidines that is 2-aminopyrimidine substituted at positions N2, 5 and 6 by (5-cyanopyridin-2-yl)ethyl, 4-methylimidazol-2-yl and 2,4-dichlorophenyl groups respectively. EC 2.7.11.26 (tau-protein kinase) inhibitor