Chen K W, Mueller T, Klinger H. "Method for the Synthesis of Methyl 2-(((3-oxo-2,3-dihydro-1H-pyrazol-4-yl)methylene)amino)acetate" [P]. US Patent, US 9301665 B2, 2024-03-08.
发明人韩伟,何建平,冯建国. "A Process for Preparing High-Purity Methyl 2-(((3-oxo-2,3-dihydro-1H-pyrazol-4-yl)methylene)amino)acetate" [P]. 中国发明专利, 专利号 CN 115694035 A, 授权公告日 2024-09-27.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2019, 735, 5228-5231.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 1620, (4), 3906-3922.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-(((3-oxo-2,3-dihydro-1H-pyrazol-4-yl)methylene)amino)acetate Using HRMS and NMR". J. Agric. Food Chem., 2011, 1788, 7671-7686.