发明人韩伟,朱建伟,陈志强. "Method for the Synthesis of Ethyl 2-(4,4-difluoropiperidin-1-yl)acetate" [P]. 中国发明专利, 专利号 CN 113833521 A, 授权公告日 2019-02-25.
发明人张德明,沈红梅,王建平. "A Process for Preparing High-Purity Ethyl 2-(4,4-difluoropiperidin-1-yl)acetate" [P]. 中国发明专利, 专利号 CN 111903051 A, 授权公告日 2025-08-13.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 293, 5916-5939.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2023, 641, 763-781.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(4,4-difluoropiperidin-1-yl)acetate Using HRMS and NMR". Phytochemistry, 2024, 1891, (1), 6075-6094.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2023, 2136, (2), 3677-3707.