Roberts E F, Stevens L M, Yamamoto T. "Method for the Synthesis of Flunisolide Impurity 4" [P]. US Patent, US 10137338 B2, 2025-05-24.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2018, 2434, 1073-1098.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2012, 2389, (4), 1562-1588.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Flunisolide Impurity 4 Using HRMS and NMR". Anal. Chem., 2013, 2288, 809-818.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2024, 828, (11), 9407-9425.