发明人林芳,郑宇鹏,马晓峰. "一种曲酸杂质N1的合成方法" [P]. 中国发明专利, 专利号 CN 112647245 A, 授权公告日 2015-08-28.
发明人朱建伟,冯建国,林芳. "Method for the Synthesis of Kojic Impurity N1" [P]. 中国发明专利, 专利号 CN 110213774 A, 授权公告日 2020-01-15.
发明人胡光,沈红梅,高志强. "A Process for Preparing High-Purity Kojic Impurity N1" [P]. 中国发明专利, 专利号 CN 117665772 A, 授权公告日 2020-06-27.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 曲酸杂质N1 in Pharmaceutical Formulations". J. Agric. Food Chem., 2025, 93, (7), 6185-6209.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 曲酸杂质N1 as an Impurity". J. Nat. Prod., 2019, 224, (2), 420-436.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Kojic Impurity N1 Using HRMS and NMR". Biomed. Chromatogr., 2016, 2336, 5193-5214.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate 曲酸杂质N1 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2014, 2082, 1625-1634.