Stress degradation study of bortezomib: effect of co-solvent, isolation and characterization of degradation products by UHPLC-Q-TOF-MS/MS and NMR and evaluation of the toxicity of the degradation products
作者:Suresh Udutha、Roshan M. Borkar、G. Shankar、T. Sony、Aishwarya Jala、E. Vamshi Krisna、T. Kiran Kumar、S. Misra、S. Prabhakar、R. Srinivas
DOI:10.1039/d0nj05781a
日期:——
degradation under acidic, basic, neutral hydrolysis and oxidative conditions, whereas it was stable under other conditions. Thirteen degradation products (DP-1–DP-13) were identified using acetonitrile as a co-solvent. Additionally, three (DP-14–DP-16) degradation products were found where methanol was used as a co-solvent. A total of 16 (DP-1–DP-16) degradation products were characterized by liquid
硼替佐米(BTZ)是蛋白酶体的一流,有效的可逆抑制剂,用于治疗多发性骨髓瘤(第二大最常见的血液系统癌症)。根据ICH建议的指南Q1A(R2)进行了应力降解研究,以研究药物的固有稳定性。在不同条件下,使用乙腈和甲醇作为助溶剂,以两种方式进行了应力实验。已开发出一种选择性指示稳定性的LC-MS方法,以使用包含0.1%甲酸和乙腈的流动相在Hibar-Purospher STAR,C18(250×4.6 mm,5μm)色谱柱上分离药物的所有降解产物在渐变模式下。BTZ发现在酸性,碱性,中性水解和氧化条件下会发生降解,而在其他条件下则保持稳定。使用乙腈作为助溶剂,鉴定出13种降解产物(DP-1–DP-13)。此外,在甲醇用作助溶剂的情况下,发现了三种(DP-14–DP-16)降解产物。液相色谱-串联质谱(LC-ESI-Q-TOF / MS / MS)和高分辨率质谱(HRMS)对总共16种(DP-1–