Sørensen M, Björnsson E, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3905676 A1, 2021-02-24.
发明人赵玉洁,王建平,杨光. "Method for the Synthesis of 9-(Diethylamino)-1-hydroxy-5H-benzo[a]phenoxazin-5-one" [P]. 中国发明专利, 专利号 CN 110968476 B, 授权公告日 2019-12-28.
发明人高志强,唐晓军,陈志强. "A Process for Preparing High-Purity 9-(Diethylamino)-1-hydroxy-5H-benzo[a]phenoxazin-5-one" [P]. 中国发明专利, 专利号 CN 116020577 A, 授权公告日 2025-04-14.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2017, 1490, (11), 2997-3004.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2019, 931, (9), 5365-5389.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 9-(Diethylamino)-1-hydroxy-5H-benzo[a]phenoxazin-5-one Using HRMS and NMR". Biomed. Chromatogr., 2016, 352, 6458-6465.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2025, 775, (1), 527-542.