发明人刘建华,孙丽萍,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116304092 A, 授权公告日 2017-10-07.
发明人徐明华,王建平,韩伟. "Method for the Synthesis of ethyl 7-chloro-6-fluoro-4-oxo-chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112904230 B, 授权公告日 2021-09-26.
发明人沈红梅,林芳,陈志强. "A Process for Preparing High-Purity ethyl 7-chloro-6-fluoro-4-oxo-chromene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113684153 B, 授权公告日 2024-11-04.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2014, 1346, (12), 26-42.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2024, 830, 7339-7348.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 7-chloro-6-fluoro-4-oxo-chromene-2-carboxylate Using HRMS and NMR". Talanta, 2023, 503, (2), 6457-6461.