Schröder R, Brown S R, Johnson M A. "一种的合成方法" [P]. US Patent, US 10093148 B2, 2020-07-10.
发明人钱学锋,何建平,朱建伟. "Method for the Synthesis of 3-(2,4-Dimethoxyphenyl)-1-methyl-1H-pyrazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117766464 A, 授权公告日 2017-12-09.
Fischer A B, Schröder R, Roberts E F. "A Process for Preparing High-Purity 3-(2,4-Dimethoxyphenyl)-1-methyl-1H-pyrazole-5-carboxylic acid" [P]. US Patent, US 9920795 B2, 2017-09-20.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2017, 1173, 7137-7144.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2020, 491, (1), 358-362.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-(2,4-Dimethoxyphenyl)-1-methyl-1H-pyrazole-5-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2011, 251, (10), 8752-8767.