Identification of the major degradation pathways of ticagrelor

Autor: Wiem Akrout, Théo Henriet, Mélisande Bernard, Fatma Amrani, Bernard Do, Najet Yagoubi, P. Tilleul, Philippe-Henri Secrétan, Hassane Sadou Yayé
Rok vydání: 2015
Předmět:
Zdroj: Journal of Pharmaceutical and Biomedical Analysis. 105:74-83
ISSN: 0731-7085
Popis: Ticagrelor is a direct-acting and reversible P2Y12-adenosine diphosphate (ADP) receptor blocker used as antiplatelet drug. Forced degradation under various stress conditions was carried out. The degradation products have been detected and identified by high-pressure liquid chromatography multistage mass spectrometry (LC-MS(n)) along with high-resolution mass spectrometry. C18 XTerra MS column combined with a linear gradient mobile phase composed of a mixture of 10 mM acetate ammonium/acetonitrile was shown suitable for drug and impurity determinations and validated as a stability indicating method. Structural elucidation of the degradation products relied on MS(n) studies and accurate mass measurements giving access to elemental compositions. Up to nine degradation products resulting from oxidation/auto-oxidation, S-dealkylation and N-dealkylation have been identified, covering a range of possible degradation pathways for derivatives with such functional groups. Kinetics was also studied in order to assess the molecule's shelf-life and to identify the most important degradation factors.
Databáze: OpenAIRE