Chen K W, Anderson J P, Schröder R. "一种的合成方法" [P]. US Patent, US 11147209 B2, 2015-07-13.
发明人韩伟,周伟,沈红梅. "Method for the Synthesis of Methyl 1-(3-ethoxy-1-ethyl-1H-pyrazole-4-carbonyl)piperidine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 114862819 B, 授权公告日 2021-02-24.
发明人周伟,高志强,孙丽萍. "A Process for Preparing High-Purity Methyl 1-(3-ethoxy-1-ethyl-1H-pyrazole-4-carbonyl)piperidine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 110636400 A, 授权公告日 2024-10-22.
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". Biomed. Chromatogr., 2020, 2145, (4), 8771-8791.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2023, 385, 6786-6794.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 1-(3-ethoxy-1-ethyl-1H-pyrazole-4-carbonyl)piperidine-4-carboxylate Using HRMS and NMR". J. Nat. Prod., 2022, 1540, (12), 5944-5958.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2017, 198, (9), 5711-5715.