Article ID Journal Published Year Pages File Type
1369626 Bioorganic & Medicinal Chemistry Letters 2012 6 Pages PDF
Abstract

GSK189254 and its corresponding precursor GSK185071B were synthesized from 3-methoxyphenylacetic acid with 6-chloropyridine-3-carbolic acid or 6-chloronicotinamide in 8 and 7 steps with either 6% or 7% and either 14% or 16% yield, respectively. [11C]GSK189254 was prepared from GSK185071B with [11C]CH3OTf through N-[11C]methylation and isolated by HPLC combined with solid-phase extraction (SPE) in 50–60% radiochemical yield based on [11C]CO2 and decay corrected to end of bombardment (EOB), with 370–740 GBq/μmol specific activity at EOB.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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