Characterization of degradation products of Ivabradine by LC-HR-MS/MS: a typical case of exhibition of different degradation behaviour in HCl and H<sub>2</sub>SO<sub>4</sub>acid hydrolysis
作者:Prinesh N. Patel、Roshan M. Borkar、Pradipbhai D. Kalariya、Rahul P. Gangwal、Abhay T. Sangamwar、Gananadhamu Samanthula、Srinivas Ragampeta
DOI:10.1002/jms.3533
日期:2015.2
validated stability-indicating HPLC method was established, and comprehensive stress testing of ivabradine, a cardiotonic drug, was carried out as per ICH guidelines. Ivabradine was subjected to acidic, basic and neutral hydrolysis, oxidation, photolysis and thermal stress conditions, and the resulting degradation products were investigated by LC-PDA and LC-HR-MS/MS. The drug was found to degrade in
建立了经过验证的稳定性指示HPLC方法,并按照ICH指南对强心药ivabradine进行了全面的压力测试。伊伐布雷定经历了酸性,碱性和中性水解,氧化,光解和热应力条件,并通过LC-PDA和LC-HR-MS / MS研究了所得的降解产物。发现该药物在酸和碱水解中降解。在Phenomenex Luna C18(250 x 4.6 mm,5.0微米)色谱柱上开发了一种高效且选择性的稳定性测定方法,使用甲酸铵(10 mM,pH 3.0)和乙腈作为流动相,在30摄氏度下以梯度洗脱模式进行。流速为0.7ml / min,检测波长为286nm。通过LC-HR-MS / MS与准确的质量测量相结合,鉴定并鉴定了总共五种降解产物(I-1至I-5)。该药物在HCl和H2SO4水解条件下表现出不同的降解行为。这是一个独特的例子,在H2SO4酸水解中不存在HCl水解的5种降解产物中的2种。本研究为修订压力试验以测