Abstract
A high-performance liquid chromatography method for the quantitation of ABT-089 [2-methyl-3-(2-( S)-pyrrolidinylmethoxy)pyridine] (I), a new structural type of cholinergic channel modulators (ChCM), is described in this paper using 7-fluoro-4-nitrobenzo-2-oxa-1,3-diazole (NBD-F) as a fluorescent-labeling reagent. The method combined an optimized liquid–liquid extraction from plasma followed by pre-column derivatization to yield a fluorescence product. The selectivity, sensitivity, and reproducibility of this method were found to be excellent. This method was applied to the determination of ng/ml plasma and tissue levels of ABT-089 and similar compounds in biological samples.
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