Identification, Characterization and Quantification of Process-Related and Degradation Impurities in Lisdexamfetamine Dimesylate: Identifiction of Two New Compounds
作者:Shenghua Gao、Lili Meng、Chunjie Zhao、Tao Zhang、Pengcheng Qiu、Fuli Zhang
DOI:10.3390/molecules23123125
日期:——
the twelve impurities were discussed based on the synthesis route of LDX. Superior separation was achieved on a YMC-Pack ODS-AQ S5 120A silica column (250 × 4.6 mm × 5 μm) using a gradient of a mixture of acetonitrile and 0.1% aqueous methanesulfonic acid solution. The HPLC method was optimized in order to separate, selectively detect, and quantify all the impurities. The full identification and characterization
中枢神经系统 (CNS) 兴奋剂赖地苯丙胺二甲磺酸盐 (LDX) 中的 12 种杂质(工艺相关和降解)首先通过高效液相色谱 (HPLC) 进行分离和定量,然后通过液相色谱质谱 (LC) -小姐)。通过 IR、HRMS 和 NMR 分析进一步确认和表征了十二种杂质的结构。根据表征数据,在工艺开发和强制降解过程中形成的两种以前未知的杂质被认为是 (2S)-2,6-di-(lysyl)-amino-N-[(1S)-1-methyl-2 -苯基乙基]己酰胺(Imp-H)和(2S)-2,6-二氨基-N-[(1S)-1-甲基-2-(2-羟基苯基)乙基]己酰胺(Imp-M)。此外,这两种化合物是新的。基于LDX的合成路线讨论了十二种杂质形成的可能机制。在 YMC-Pack ODS-AQ S5 120A 硅胶柱 (250 × 4.6 mm × 5 μm) 上使用乙腈和 0.1% 甲磺酸水溶液的混合物梯度实现了卓越的分离。对