Chen K W, Kumar R, Roberts E F. "一种的合成方法" [P]. US Patent, US 9487669 B2, 2023-09-02.
Williams B T, O'Brien P Q, Hughes D C. "Method for the Synthesis of 1-(4-Methoxyphenyl)pyrazolidine-3,5-dione" [P]. US Patent, US 10312592 B2, 2017-12-03.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2024, 1445, (5), 7755-7781.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2025, 1187, (3), 5067-5097.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-Methoxyphenyl)pyrazolidine-3,5-dione Using HRMS and NMR". Phytochemistry, 2022, 1632, (1), 4945-4963.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2012, 1944, (5), 7361-7391.