发明人高志强,孙丽萍,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115947789 A, 授权公告日 2021-06-24.
发明人朱建伟,马晓峰,林芳. "Method for the Synthesis of Benzyl 2-ethynyl-4,4-difluoro-2-methylpyrrolidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 110932504 A, 授权公告日 2017-07-09.
发明人朱建伟,马晓峰,冯建国. "A Process for Preparing High-Purity Benzyl 2-ethynyl-4,4-difluoro-2-methylpyrrolidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 114223535 B, 授权公告日 2024-06-13.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 1927, (9), 6754-6784.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 2303, (8), 22-44.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Benzyl 2-ethynyl-4,4-difluoro-2-methylpyrrolidine-1-carboxylate Using HRMS and NMR". Molecules, 2016, 1900, 1138-1142.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2023, 1718, (6), 6455-6483.