Synthesis of 2-amino-5-benzoyl-4-(2-furyl)thiazoles as adenosine A(2A) receptor antagonists.
ABSTRACT The discovery and synthesis of a series of 2-amino-5-benzoyl-4-(2-furyl)thiazoles as adenosine A(2A) receptor antagonists from a small-molecule combinatorial library using a high-throughput radioligand-binding assay is described. Antagonists were further characterized in the A(2A) binding assay and an A(1) selectivity assay. Selected examples exhibited excellent affinity for A(2A) and good selectivity versus the A(1) receptor.
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ABSTRACT: Antagonism of the adenosine A(2A) receptor affords a possible treatment of Parkinson's disease. In the course of investigating pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidine A(2A) antagonists, we prepared [1,2,4]-triazolo[4,3-c]pyrimidin-3-ones with potent and selective (vs A(1)) A(2A) antagonist activity. Structure-activity relationships are described for this series.Bioorganic & medicinal chemistry letters 02/2011; 21(8):2497-501. · 2.65 Impact Factor
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