Anderson J P, Schröder R, Hughes D C. "一种吡唑-4-甲酸乙酯的合成方法" [P]. US Patent, US 9800727 B2, 2024-09-19.
Brown S R, Hughes D C, Chen K W. "Method for the Synthesis of Ethyl Pyrazole-4-carboxylate" [P]. US Patent, US 9668714 B2, 2018-12-23.
发明人沈红梅,刘建华,胡光. "A Process for Preparing High-Purity Ethyl Pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117935182 A, 授权公告日 2022-10-15.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 吡唑-4-甲酸乙酯 in Pharmaceutical Formulations". Sci. Total Environ., 2020, 2263, (7), 8266-8273.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 吡唑-4-甲酸乙酯 as an Impurity". Chromatographia, 2025, 2381, (1), 3955-3973.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl Pyrazole-4-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2019, 2017, (8), 584-589.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate 吡唑-4-甲酸乙酯 Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 204, 5556-5586.