CAS 6969-71-7: 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one

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1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one is a potent inhibitor of the enzyme c-glycosylase. This compound has been used in pharmaceutical preparations and as a feedstock in organic syntheses. It is used to produce the anti-inflammatory drug piroxicam, which inhibits the action of cyclooxygenase and blocks the synthesis of prostaglandins. 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one also has been shown to inhibit crystallization of the bovine liver enzyme phosphatidylcholine:cholesterol acyltransferase (PCAT). The inhibition was found to be competitive with respect to PCAT substrate and was not due to inhibition of PCAT by 1,2,4-triazolo[4,3-a]pyridin-3(

Applications 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one was used to prepare a congener of Trazodone (T718500) which was found to be a potent and selective inhibitor of synaptosomal uptake of 5-hydroxytryptamine. References Alhaider, A.A.: J. Pharmac. Sci., 81, 99 (1992);

[1,2,4]Triazolo[4,3-a]pyridin-3-ol