发明人沈红梅,高志强,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117748852 A, 授权公告日 2022-09-02.
发明人徐明华,冯建国,唐晓军. "Method for the Synthesis of N-(2,3-Dimethylphenyl)-4-oxo-4a,8a-dihydro-4H-chromene-2-carboxamide" [P]. 中国发明专利, 专利号 CN 109327282 B, 授权公告日 2019-10-06.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2017, 1253, (3), 2425-2446.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2012, 2127, (4), 7462-7472.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of N-(2,3-Dimethylphenyl)-4-oxo-4a,8a-dihydro-4H-chromene-2-carboxamide Using HRMS and NMR". J. Chromatogr. A, 2015, 1861, 7054-7080.