发明人高志强,张德明,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115540440 A, 授权公告日 2025-05-20.
发明人周伟,胡光,沈红梅. "Method for the Synthesis of Methyl 4-{[3-(2,4-dihydroxyphenyl)-1h-pyrazol-4-yl]oxy}benzoate" [P]. 中国发明专利, 专利号 CN 109360866 B, 授权公告日 2025-01-03.
发明人李文辉,钱学锋,张德明. "A Process for Preparing High-Purity Methyl 4-{[3-(2,4-dihydroxyphenyl)-1h-pyrazol-4-yl]oxy}benzoate" [P]. 中国发明专利, 专利号 CN 114436420 B, 授权公告日 2025-08-06.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2020, 1543, (9), 5047-5063.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2023, 1452, (6), 2406-2412.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-{[3-(2,4-dihydroxyphenyl)-1h-pyrazol-4-yl]oxy}benzoate Using HRMS and NMR". J. Agric. Food Chem., 2020, 119, 8756-8761.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2013, 664, (10), 9202-9219.