Synthesis of [1,2,4]triazolo[1,5-a]pyrazines as adenosine A2A receptor antagonists.
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Dowling JE, Vessels JT, Haque S, Chang HX, van Vloten K, Kumaravel G, Engber T, Jin X, Phadke D, Wang J, Ayyub E, Petter RC
Synthesis of [1,2,4]triazolo[1,5-a]pyrazines as adenosine A2A receptor antagonists.
Bioorg Med Chem Lett. 2005 Nov 1;15(21):4809-13.
- PubMed ID
- 16153830 [ View in PubMed]
- Abstract
Potent and selective antagonists of the adenosine A2A receptor often contain a nitrogen-rich fused-ring heterocyclic core. Replacement of the core with an isomeric ring system has previously been shown to improve target affinity, selectivity, and in vivo activity. This paper describes the preparation, by a novel route, of A2A receptor antagonists containing the [1,2,4]triazolo[1,5-a]pyrazine nucleus, which is isomeric with the [1,2,4]triazolo[1,5-c]pyrimidine core of a series of known A2A antagonists with in vivo activity in animal models of Parkinson's disease.
DrugBank Data that Cites this Article
- Binding Properties
Drug Target Property Measurement pH Temperature (°C) 4-{2-[(7-amino-2-furan-2-yl[1,2,4]triazolo[1,5-a][1,3,5]triazin-5-yl)amino]ethyl}phenol Adenosine receptor A2a Ki (nM) 0.3 N/A N/A Details