发明人张德明,孙丽萍,周伟. "Method for the Synthesis of 1-benzyl-3-ethyl-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111154079 A, 授权公告日 2017-06-22.
发明人何建平,孙丽萍,郑宇鹏. "A Process for Preparing High-Purity 1-benzyl-3-ethyl-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111109668 B, 授权公告日 2018-11-18.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 1-benzyl-3-ethyl-1H-pyrazole-4-carboxylic acid in Pharmaceutical Formulations". Anal. Chim. Acta, 2019, 1312, (4), 7077-7095.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-benzyl-3-ethyl-1H-pyrazole-4-carboxylic acid as an Impurity". Talanta, 2025, 1143, (10), 6189-6209.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 1-benzyl-3-ethyl-1H-pyrazole-4-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2020, 337, (1), 5224-5249.