Hughes D C, Anderson J P, Yamamoto T. "一种的合成方法" [P]. US Patent, US 11093540 B2, 2019-01-04.
发明人韩伟,钱学锋,胡光. "Method for the Synthesis of Methyl 1-(4-ethoxy-4-oxobutyl)-5-methyl-1h-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112975997 B, 授权公告日 2016-09-10.
发明人郭海燕,黄志刚,周伟. "A Process for Preparing High-Purity Methyl 1-(4-ethoxy-4-oxobutyl)-5-methyl-1h-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116856899 B, 授权公告日 2017-07-23.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1653, 6988-7015.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2020, 437, (8), 8882-8898.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 1-(4-ethoxy-4-oxobutyl)-5-methyl-1h-pyrazole-3-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2024, 874, 5291-5308.