Klinger H, Kumar R, Stevens L M. "Method for the Synthesis of 1-(5-((2-Hydroxyethyl)sulfonyl)-2-methoxyphenyl)-3-methyl-1H-pyrazol-5(4H)-one" [P]. US Patent, US 11919939 B2, 2020-05-06.
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". Biomed. Chromatogr., 2020, 750, (5), 4792-4817.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2011, 1870, (12), 9296-9302.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-(5-((2-Hydroxyethyl)sulfonyl)-2-methoxyphenyl)-3-methyl-1H-pyrazol-5(4H)-one Using HRMS and NMR". Chemosphere, 2019, 886, (5), 3958-3981.