发明人朱建伟,马晓峰,唐晓军. "Method for the Synthesis of (4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazine" [P]. 中国发明专利, 专利号 CN 113608711 A, 授权公告日 2024-10-13.
发明人郭海燕,马晓峰,胡光. "A Process for Preparing High-Purity (4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazine" [P]. 中国发明专利, 专利号 CN 116953863 B, 授权公告日 2019-08-22.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2011, 2027, (4), 2793-2799.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2022, 1971, 1250-1260.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of (4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(trifluoromethyl)-2H-3,1-benzoxazine Using HRMS and NMR". J. Nat. Prod., 2021, 1700, (6), 8370-8380.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2024, 1265, 5458-5479.