Selective A1-adenosine receptor antagonists identified using yeast Saccharomyces cerevisiae functional assays
- Bioorg Med Chem Lett. 1999 Aug 16;9(16):2413-8. doi: 10.1016/s0960-894x(99)00398-4.
- 1. Cadus Pharmaceutical Corporation, Tarrytown, NY 10591, USA.
Evaluation of a biased "library" of pyrrolo[2,3-d]pyrimidines using yeast-based functional assays expressing human A1- and A2a-adenosine receptors, led to the A1 selective antagonist 4b. A direct correlation between yeast functional activity and binding data was established. Practical compounds with polar residues at C-4 of the pyrrolopyrimidine system required H-bond donor functionality for high potency.