发明人沈红梅,赵玉洁,李文辉. "一种L-5-甲基四氢叶酸钙的合成方法" [P]. 中国发明专利, 专利号 CN 110696203 A, 授权公告日 2016-05-08.
Lefèvre J P, Mueller T C, Rossi M. "Method for the Synthesis of L-5-Methyltetrahydrofolate Calcium" [P]. European Patent, EP 3684862 A1, 2023-07-01.
发明人唐晓军,徐明华,冯建国. "A Process for Preparing High-Purity L-5-Methyltetrahydrofolate Calcium" [P]. 中国发明专利, 专利号 CN 117420177 B, 授权公告日 2017-08-03.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of L-5-甲基四氢叶酸钙 in Pharmaceutical Formulations". J. Sep. Sci., 2021, 167, 1127-1156.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of L-5-甲基四氢叶酸钙 as an Impurity". J. Pharm. Biomed. Anal., 2020, 795, (8), 9792-9803.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of L-5-Methyltetrahydrofolate Calcium Using HRMS and NMR". Anal. Chim. Acta, 2018, 2250, (5), 2280-2291.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate L-5-甲基四氢叶酸钙 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2022, 1536, (3), 4193-4219.