| abstract |
ABSTRACT Pharmaceutical compounds which are azolo-fused pyrimidine compounds having the formula (I) in which =A---B-- together with the pyrimidine ring forms a) a pyrazolo[1,5-a]pyrimidine of formula (A), (A) pyrazolo [1,5-a] pyrimidine b) a [1,2,4]triazolo[1,5-a]pyrimidine of formula (B), (B) [1,2,4] triazolo [1,5-a] pyrimidine c) an imidazo[1,5-a]pyrimidine of formula (C), (C) imidazo [1,5-a] pyrimidine or d) an imidazo[1,2-a]pyrimidine of formula (D), (D) imidazo [1,2-a] pyrimidine |