Kowalski A, Schröder R, Johansson L. "Method for the Synthesis of Spironolactone Gammalactone Impurity" [P]. European Patent, EP 3510677 A1, 2019-01-02.
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". Food Chem., 2017, 1565, (4), 1139-1157.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2018, 800, (1), 6507-6531.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Spironolactone Gammalactone Impurity Using HRMS and NMR". Molecules, 2018, 2247, (10), 9571-9594.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2022, 2076, 9147-9150.