Schröder R, Johansson L, Mueller T C. "Method for the Synthesis of tert-Butyl 2-{[4-(methylsulfonyl)phenyl]-acetyl}pyrazolidine-1-carboxylate" [P]. European Patent, EP 3800653 A1, 2021-11-21.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2018, 1589, (1), 1229-1244.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2022, 931, (1), 6545-6553.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 2-{[4-(methylsulfonyl)phenyl]-acetyl}pyrazolidine-1-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 430, 3209-3236.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2012, 121, 2052-2065.