发明人高志强,唐晓军,林芳. "Method for the Synthesis of Methyl 2-hydroxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)acetate" [P]. 中国发明专利, 专利号 CN 115970343 A, 授权公告日 2019-02-15.
发明人胡光,周伟,李文辉. "A Process for Preparing High-Purity Methyl 2-hydroxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)acetate" [P]. 中国发明专利, 专利号 CN 112147924 B, 授权公告日 2020-07-16.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2013, 2423, (3), 4479-4491.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2015, 2274, (3), 6346-6357.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-hydroxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)acetate Using HRMS and NMR". J. Sep. Sci., 2010, 1511, (3), 9941-9957.