Jørgensen K, Martínez F, Sørensen M. "一种2-{[(1-ethyl-1H-pyrazol-4-yl)methane]sulfonyl}acetic acid的合成方法" [P]. European Patent, EP 3332496 A1, 2018-10-18.
发明人周伟,徐明华,郑宇鹏. "Method for the Synthesis of 2-{[(1-ethyl-1H-pyrazol-4-yl)methane]sulfonyl}acetic acid" [P]. 中国发明专利, 专利号 CN 116815619 A, 授权公告日 2023-11-11.
Lefèvre J P, Sørensen M, Kowalski A. "A Process for Preparing High-Purity 2-{[(1-ethyl-1H-pyrazol-4-yl)methane]sulfonyl}acetic acid" [P]. European Patent, EP 3207454 A1, 2020-10-01.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 2-{[(1-ethyl-1H-pyrazol-4-yl)methane]sulfonyl}acetic acid in Pharmaceutical Formulations". J. Chromatogr. A, 2016, 2033, 820-836.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-{[(1-ethyl-1H-pyrazol-4-yl)methane]sulfonyl}acetic acid as an Impurity". Food Chem., 2010, 188, 4983-4991.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 2-{[(1-ethyl-1H-pyrazol-4-yl)methane]sulfonyl}acetic acid Using HRMS and NMR". Anal. Methods, 2014, 318, 3567-3574.