Forced degradation studies of lansoprazole using LC-ESI HRMS and <sup>1</sup>
H-NMR experiments: <i>in vitro</i>
toxicity evaluation of major degradation products
作者:G. Shankar、R. M. Borkar、U. Suresh、L. Guntuku、V. G. M. Naidu、N. Nagesh、R. Srinivas
DOI:10.1002/jms.3949
日期:2017.7
DP‐3 were formed in acidic, DP‐4 in basic, DP‐5 in neutral and DP‐1, DP‐6, DP‐7 and DP‐8 were in oxidation stress condition Among eight degradation products, five were hitherto unknown degradation products. In addition, one of the major degradation products, DP‐2, was isolated by using semi preparative HPLC and other two, DP‐6 and DP‐7 were synthesized. The cytotoxic effect of these degradation products
由于其降解作用或致癌性,世界各地的监管机构都对药物降解产品制定了严格的准则。根据ICH指南Q1A(R2),对质子泵抑制剂Lansoprazole进行了强制降解研究。发现该药物在酸性,碱性,中性水解和氧化应激条件下降解,而在热和光解条件下稳定。在Hiber Purospher,C18(250×4.6 mm,5μ)色谱柱上使用10 mM乙酸铵和乙腈作为流动相,以梯度洗脱模式以1.0的流速进行色谱分离,分离出药物及其降解产物毫升/分钟 通过UPLC / ESI / HRMS,结合源CID实验和准确的质量测量,鉴定并表征了8种降解产物(DP1-8)。DP-1,DP-2和DP-3在酸性条件下形成,DP-4在碱性条件下形成,DP-5在中性条件下形成,并且DP-1,DP-6,DP-7和DP-8处于氧化应激状态中降解产物,其中五种是迄今为止未知的降解产物。此外,使用半制备型HPLC分离了主要降解产物之一D