发明人孙丽萍,李文辉,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109752756 A, 授权公告日 2018-10-26.
Lee S K, Fischer A B, Yamamoto T. "Method for the Synthesis of 4-(2,4-Dimethoxyphenyl)-1H-pyrazol-3-amine" [P]. US Patent, US 9924914 B2, 2020-03-01.
O'Brien P Q, Hughes D C, Patel M V. "A Process for Preparing High-Purity 4-(2,4-Dimethoxyphenyl)-1H-pyrazol-3-amine" [P]. US Patent, US 11439135 B2, 2018-12-26.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2013, 1335, (4), 3361-3366.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2021, 1560, 1682-1700.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2,4-Dimethoxyphenyl)-1H-pyrazol-3-amine Using HRMS and NMR". J. Chromatogr. A, 2014, 89, (3), 2745-2751.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2014, 1575, 9157-9178.