Determination of an isonicotinylhydrazide derivative, a novel positive inotropic compound, in mouse plasma by LC–MS/MS and its application to a pharmacokinetics study

Publication date: 20 February 2019Source: Journal of Pharmaceutical and Biomedical Analysis, Volume 165Author(s): Renjie Hui, Yueying Gao, Jingyi Liu, Haili Liu, Chunlei Tang, Bainian FengAbstractHeart failure (HF) is one of the most serious health problems worldwide. A new positive inotropic compound, an isonicotinylhydrazide derivative (AF-HF001) was designed recently. A liquid chromatography-tandem mass spectrometry (LC–MS/MS) method was developed for the determination of the target analyte in mouse plasma. Samples were prepared by one step precipitation with ethyl acetate and stored in acetonitrile. Chromatographic analysis was carried out on a Hypersil Gold C18 column (2.1 mm × 50 mm, 3 μm) with a gradient mobile phase consisting of acetonitrile and 0.1% aqueous formic acid. The analyte was detected by selective reaction monitoring (SRM) mode with target quantitative ion pair of m/z 292.1 → 148.2, using praziquantel as the internal standard (IS) m/z 313.1 → 203.2. Good linearity (r = 0.995) was observed over a wide concentration range. The validation of method showed acceptable recovery and precision. The method has been then applied to a very first pharmacokinetic assay of AF-HF001 in mice.
Source: Journal of Pharmaceutical and Biomedical Analysis - Category: Drugs & Pharmacology Source Type: research