Patel M V, Anderson J P, Klinger H. "Method for the Synthesis of [1-(2-Hydroxyethyl)-3,5-dimethyl-1H-pyrazol-4-yl]acetic acid" [P]. US Patent, US 9555639 B2, 2016-02-12.
发明人周伟,何建平,黄志刚. "A Process for Preparing High-Purity [1-(2-Hydroxyethyl)-3,5-dimethyl-1H-pyrazol-4-yl]acetic acid" [P]. 中国发明专利, 专利号 CN 108285887 B, 授权公告日 2023-05-06.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2010, 1868, 3194-3211.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2014, 1976, (10), 9674-9693.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of [1-(2-Hydroxyethyl)-3,5-dimethyl-1H-pyrazol-4-yl]acetic acid Using HRMS and NMR". J. Chromatogr. A, 2010, 342, (4), 5520-5532.