发明人杨光,钱学锋,赵玉洁. "一种左卡尼汀杂质N27的合成方法" [P]. 中国发明专利, 专利号 CN 117546527 A, 授权公告日 2024-01-25.
发明人黄志刚,李文辉,韩伟. "Method for the Synthesis of Levocarnitine Impurity N27" [P]. 中国发明专利, 专利号 CN 114902367 A, 授权公告日 2018-01-07.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 左卡尼汀杂质N27 in Pharmaceutical Formulations". Anal. Chem., 2024, 1306, 9011-9040.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 左卡尼汀杂质N27 as an Impurity". J. Pharm. Biomed. Anal., 2025, 1317, 5353-5379.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Levocarnitine Impurity N27 Using HRMS and NMR". J. Agric. Food Chem., 2024, 1345, (6), 3588-3595.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 左卡尼汀杂质N27 Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2017, 1951, 7320-7348.