Determination of protein binding for novel 2‐(2‐hydroxypropanamido)‐5‐trifluoromethyl benzoic acid enantiomers to rats, dogs, and humans plasma by UPLC‐MS/MS
Abstract:R-/S-2-(2-hydroxypropanamido)-5-trifluoromethyl benzoic acid (R-/S-HFBA) is a novel COX inhibitor with remarkable anti-inflammatory and antiplatelet aggregation activities, but no gastrointestinal toxicity. In our previous study, the different pharmacokinetic profiles of the two enantiomers in rats were observed after administration of R-HFBA and S-HFBA. Stereoselective protein binding of the two enantiomers may be a reason for the different pharmacokinetic behaviors. In this study, we developed and validated … Show more
“…Recent research in our laboratory had found stereoselective plasma protein binding for R-/S-HFBA. 23 The metabolism study adopted UHPLC-FT-ICR-MS method in positive ion mode for achieving higher mass resolution of HFBA and possible metabolites in the MS spectra. A total number of 8 metabolites of HFBA were rstly identied in the rat bile, urine, plasma and feces.…”
Section: Discussionmentioning
confidence: 99%
“…The product ion spectra for R-/S-HFBA and IS were shown in our previous report. 23 2.3.2 Metabolism. The apparatus consisted of an Agilent 1260 UHPLC system (Agilent, USA), with quadruple pump, autosampler, online degasser, column compartment diode-array detector and a Bruker Solarix 7.0T FT-ICR-MS system (Bruker, Germany).…”
Section: Instrument and Analytical Conditionsmentioning
R-/S-2-(2-Hydroxypropanamido)-5-trifluoromethyl benzoic acid (R-/S-HFBA), as a novel COX inhibitor, was firstly reported to have remarkable anti-inflammatory and antiplatelet aggregation activities by our group.
“…Recent research in our laboratory had found stereoselective plasma protein binding for R-/S-HFBA. 23 The metabolism study adopted UHPLC-FT-ICR-MS method in positive ion mode for achieving higher mass resolution of HFBA and possible metabolites in the MS spectra. A total number of 8 metabolites of HFBA were rstly identied in the rat bile, urine, plasma and feces.…”
Section: Discussionmentioning
confidence: 99%
“…The product ion spectra for R-/S-HFBA and IS were shown in our previous report. 23 2.3.2 Metabolism. The apparatus consisted of an Agilent 1260 UHPLC system (Agilent, USA), with quadruple pump, autosampler, online degasser, column compartment diode-array detector and a Bruker Solarix 7.0T FT-ICR-MS system (Bruker, Germany).…”
Section: Instrument and Analytical Conditionsmentioning
R-/S-2-(2-Hydroxypropanamido)-5-trifluoromethyl benzoic acid (R-/S-HFBA), as a novel COX inhibitor, was firstly reported to have remarkable anti-inflammatory and antiplatelet aggregation activities by our group.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.