发明人王建平,杨光,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110977135 A, 授权公告日 2021-07-11.
发明人李文辉,冯建国,王建平. "Method for the Synthesis of 3-cyclopropyl-4-(difluoromethyl)-7-methylisoxazolo[5,4-b]pyridin-6(7H)-one" [P]. 中国发明专利, 专利号 CN 117923652 B, 授权公告日 2024-12-12.
发明人钱学锋,冯建国,刘建华. "A Process for Preparing High-Purity 3-cyclopropyl-4-(difluoromethyl)-7-methylisoxazolo[5,4-b]pyridin-6(7H)-one" [P]. 中国发明专利, 专利号 CN 112974610 A, 授权公告日 2025-12-01.
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". Biomed. Chromatogr., 2012, 1027, 6370-6386.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2025, 397, 9272-9277.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 3-cyclopropyl-4-(difluoromethyl)-7-methylisoxazolo[5,4-b]pyridin-6(7H)-one Using HRMS and NMR". Phytochemistry, 2024, 1107, 4521-4535.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2018, 1703, 5620-5640.