发明人徐明华,刘建华,钱学锋. "Method for the Synthesis of 4-Hydroxy-6-methyl-3-nitrocoumarin" [P]. 中国发明专利, 专利号 CN 110187298 A, 授权公告日 2023-12-22.
发明人胡光,周伟,杨光. "A Process for Preparing High-Purity 4-Hydroxy-6-methyl-3-nitrocoumarin" [P]. 中国发明专利, 专利号 CN 116765028 A, 授权公告日 2022-07-19.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2022, 2020, (7), 5071-5076.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2016, 1689, (4), 5264-5272.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-Hydroxy-6-methyl-3-nitrocoumarin Using HRMS and NMR". Biomed. Chromatogr., 2025, 964, (9), 2605-2609.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2011, 1180, 6484-6503.