1, 2, 4-Triazolo [1, 5-a] quinoxaline as a versatile tool for the design of selective human A3 adenosine receptor antagonists: synthesis, biological evaluation, and …
A number of 4-oxo-substituted 1, 2, 4-triazolo [1, 5-a] quinoxaline derivatives bearing at position-2 the claimed (hetero) aryl moiety (compounds 1-15) but also a carboxylate group (16-28, 32-36) or a hydrogen atom (29-31) were designed as human A3 (hA3) adenosine