发明人孙丽萍,何建平,冯建国. "Method for the Synthesis of 2-(1,3-Dimethyl-1H-pyrazol-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109975949 B, 授权公告日 2019-04-27.
Martínez F, Mueller T C, Nowak P. "A Process for Preparing High-Purity 2-(1,3-Dimethyl-1H-pyrazol-4-yl)acetic acid" [P]. European Patent, EP 3121423 A1, 2025-04-18.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2012, 1197, 6942-6960.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2015, 2473, (7), 5798-5801.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 2-(1,3-Dimethyl-1H-pyrazol-4-yl)acetic acid Using HRMS and NMR". Anal. Chem., 2014, 364, (6), 7063-7086.