发明人孙丽萍,赵玉洁,胡光. "Method for the Synthesis of 2-(6-Chloro-3,4-dihydro-2h-1,4-benzoxazin-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109342662 B, 授权公告日 2023-10-24.
发明人孙丽萍,赵玉洁,徐明华. "A Process for Preparing High-Purity 2-(6-Chloro-3,4-dihydro-2h-1,4-benzoxazin-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 108173611 A, 授权公告日 2017-01-09.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2010, 449, (4), 8351-8380.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2024, 2173, 9314-9321.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(6-Chloro-3,4-dihydro-2h-1,4-benzoxazin-4-yl)acetic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2013, 662, 568-585.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2022, 2431, (12), 3239-3245.