发明人唐晓军,朱建伟,马晓峰. "Method for the Synthesis of 4-Ethynyl-1-methyl-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115715240 B, 授权公告日 2017-05-07.
发明人罗永刚,王建平,孙丽萍. "A Process for Preparing High-Purity 4-Ethynyl-1-methyl-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117827093 B, 授权公告日 2021-10-09.
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". Food Chem., 2021, 1949, 8627-8637.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 2093, 9292-9312.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethynyl-1-methyl-1h-pyrazole-3-carboxylic acid Using HRMS and NMR". Anal. Methods, 2023, 926, (7), 5951-5956.