Klinger H, Schröder R, Johnson M A. "一种的合成方法" [P]. US Patent, US 10790938 B2, 2015-05-23.
发明人郑宇鹏,陈志强,韩伟. "Method for the Synthesis of Methyl 2-((2-ethyl-4-(trifluoromethyl)-2H-pyrazolo[3,4-b]pyridin-6-yl)thio)acetate" [P]. 中国发明专利, 专利号 CN 116129725 B, 授权公告日 2020-07-19.
发明人林芳,何建平,朱建伟. "A Process for Preparing High-Purity Methyl 2-((2-ethyl-4-(trifluoromethyl)-2H-pyrazolo[3,4-b]pyridin-6-yl)thio)acetate" [P]. 中国发明专利, 专利号 CN 108480548 B, 授权公告日 2024-09-12.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2024, 1941, 7610-7617.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2025, 1172, 7746-7757.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-((2-ethyl-4-(trifluoromethyl)-2H-pyrazolo[3,4-b]pyridin-6-yl)thio)acetate Using HRMS and NMR". Anal. Chim. Acta, 2018, 327, 793-803.