发明人孙丽萍,黄志刚,高志强. "Method for the Synthesis of 2-Amino-4-(2,5-dimethoxyphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 115677445 A, 授权公告日 2020-05-09.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2021, 863, (6), 9957-9981.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2013, 1526, 5306-5319.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-4-(2,5-dimethoxyphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile Using HRMS and NMR". J. Chromatogr. A, 2017, 253, (8), 8105-8126.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2020, 2297, 8752-8769.