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苯甲酸阿格列汀中未知杂质的分离与鉴定

Isolation and identification of unknown impurities of alogliptin benzoate

  • 摘要: 通过硅胶柱色谱法、溶剂提取法及制备液相色谱法等分离分析方法,从苯甲酸阿格列汀的大生产制备过程中分离得到4个新的有关物质,并根据其理化性质采用核磁共振光谱法、高分辨质谱法、傅里叶变换红外光谱法等多种波谱鉴定方法对其进行分析确证。确定了从苯甲酸阿格列汀的合成过程各步骤中所产生的4个有关物质的化学结构,将它们命名为杂质L、M、T、V,这4个杂质均为首次发现的新杂质。本研究对于苯甲酸阿格列汀生产过程中的质量控制和生产工艺的优化具有重要意义。

     

    Abstract: By silica gel column chromatography, solvent extraction and preparative high performance liquid chromatography (HPLC), four new related substance were isolated and purified from the mass production and preparation process of alogliptin benzoate. Then it was analyzed and confirmed by various spectrum identification methods such as nuclear magnetic resonance (NMR) spectroscopy, high-resolution mass spectrometry (HR-MS) and Fourier-transform infrared spectroscopy (FTIR) according to its physical and chemical properties. The chemical structures of the four related substances produced in each step of the synthesis process of alogliptin benzoate were determined, and they were named as impurities L, M, T, and V. These four related substances were new impurities which were found for the first time. The isolation and identification of these impurities are of great importance to the quality control of alogliptin benzoate, and the optimization of manufacturing process.

     

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