Mueller T, Kumar R, Stevens L M. "Method for the Synthesis of 1-(5-Hydroxy-3-methyl-2-phenylpyrazolidin-1-yl)ethanone" [P]. US Patent, US 10603289 B2, 2025-10-28.
Anderson J P, O'Brien P Q, Stevens L M. "A Process for Preparing High-Purity 1-(5-Hydroxy-3-methyl-2-phenylpyrazolidin-1-yl)ethanone" [P]. US Patent, US 9991484 B2, 2022-12-27.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2025, 2195, 7424-7427.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2024, 1870, 6685-6706.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 1-(5-Hydroxy-3-methyl-2-phenylpyrazolidin-1-yl)ethanone Using HRMS and NMR". Chromatographia, 2019, 2066, (6), 3874-3877.