发明人杨光,刘建华,何建平. "Method for the Synthesis of (R)-3-bromo-7-methyl-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine" [P]. 中国发明专利, 专利号 CN 111064816 A, 授权公告日 2024-04-26.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2024, 683, (1), 4669-4686.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2024, 1647, (6), 8004-8034.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of (R)-3-bromo-7-methyl-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine Using HRMS and NMR". Phytochemistry, 2025, 1872, 3269-3298.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2019, 2336, (6), 8881-8885.