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pubmed:abstractText |
We have identified and synthesized a series of 2,7-diamino-thiazolo[5,4-d]pyrimidines as TRPV1 antagonists. An exploration of the structure-activity relationships at the 2-, 5-, and 7-positions of the thiazolo[5,4-d]pyrimidine led to the identification of several potent TRPV1 antagonists, including 3, 29, 51, and 57. Compound 3 was orally bioavailable and afforded a significant reversal of carrageenan-induced thermal hyperalgesia with an ED(50)=0.5mg/kg in rats.
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