Rossi M, Björnsson E, Martínez F. "一种的合成方法" [P]. European Patent, EP 3789691 A1, 2020-11-04.
Anderson J P, Patel M V, Park J H. "Method for the Synthesis of 2-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)acetic acid" [P]. US Patent, US 11626744 B2, 2016-11-17.
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". Environ. Sci. Technol., 2015, 2466, 9504-9508.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2015, 2130, (1), 6386-6413.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)acetic acid Using HRMS and NMR". J. Nat. Prod., 2019, 809, 959-966.