Fischer A B, Yamamoto T, Klinger H. "一种的合成方法" [P]. US Patent, US 10730177 B2, 2017-01-13.
发明人朱建伟,韩伟,陈志强. "Method for the Synthesis of (S)-2-amino-7-methyl-4-(2-nitrophenyl)-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 110780182 B, 授权公告日 2017-09-04.
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". Anal. Chim. Acta, 2016, 1154, (2), 82-108.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2014, 1243, (2), 1815-1826.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of (S)-2-amino-7-methyl-4-(2-nitrophenyl)-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile Using HRMS and NMR". Food Chem., 2025, 571, (12), 5797-5827.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2019, 829, 1452-1476.