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Purpose To synthesize a trifluorinated bile acid that can be used for 19F magnetic resonance imaging (MRI) of bile acid enterohepatic circulation, characterize its in vitro transporter affinity, stability, and 19F-MRI signal, and assess its ability to concentrate in the gallbladder of C57BL/6 mice. Methods Target compound CA-lys-TFA was synthesized and tested for affinity toward the apical sodium...
1-{7-[(1-(3,5-Diethoxyphenyl)-3-{[(3,5-difluorophenyl)(ethyl)amino]carbonyl}-4-oxo-1,4-dihydroquinolin-7-yl)oxy]heptyl}-1-methylpiperidinium bromide, R-146224, is a potent, specific ileum apical sodium-dependent bile acid transporter (ASBT) inhibitor; concentrations required for 50% inhibition of [ 3 H]taurocholate uptake in human ASBT-expressing HEK-293 cells and hamster ileum tissues were...
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