Nielsen H, Kowalski A, Rossi M. "一种的合成方法" [P]. European Patent, EP 3146643 A1, 2022-06-12.
发明人冯建国,罗永刚,郑宇鹏. "Method for the Synthesis of Methyl 5,7-difluoro-2h-chromene-8-carboxylate" [P]. 中国发明专利, 专利号 CN 108652486 A, 授权公告日 2019-03-09.
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". Environ. Sci. Technol., 2021, 388, (5), 2689-2703.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2025, 1549, 3641-3664.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5,7-difluoro-2h-chromene-8-carboxylate Using HRMS and NMR". Talanta, 2021, 1689, (11), 1390-1415.