Klinger H, Stevens L M, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9066718 B2, 2020-05-08.
发明人杨光,罗永刚,陈志强. "Method for the Synthesis of Ethyl 4-hydroxy-8-methoxy-2-oxo-2H-chromene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116146256 A, 授权公告日 2017-08-02.
Klinger H, Anderson J P, Park J H. "A Process for Preparing High-Purity Ethyl 4-hydroxy-8-methoxy-2-oxo-2H-chromene-3-carboxylate" [P]. US Patent, US 9148949 B2, 2020-01-25.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2011, 2202, (6), 8027-8048.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2015, 1198, (2), 6997-7021.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-hydroxy-8-methoxy-2-oxo-2H-chromene-3-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2025, 1250, (11), 4068-4087.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2011, 473, 84-95.