发明人郑宇鹏,高志强,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109216902 A, 授权公告日 2024-04-06.
发明人刘建华,马晓峰,赵玉洁. "Method for the Synthesis of Ethyl 2,8-dimethyl-4-oxo-4H-chromene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114382410 A, 授权公告日 2024-06-24.
Kumar R, Johnson M A, Yamamoto T. "A Process for Preparing High-Purity Ethyl 2,8-dimethyl-4-oxo-4H-chromene-3-carboxylate" [P]. US Patent, US 10744795 B2, 2020-02-26.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2025, 1379, (4), 9596-9620.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2013, 121, (10), 6446-6468.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2,8-dimethyl-4-oxo-4H-chromene-3-carboxylate Using HRMS and NMR". Anal. Chem., 2019, 788, (2), 785-800.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2021, 886, (12), 8886-8898.