发明人冯建国,沈红梅,林芳. "Method for the Synthesis of 2-Propynoicacid,3-(1H-pyrazol-4-yl)-" [P]. 中国发明专利, 专利号 CN 109170608 B, 授权公告日 2017-12-01.
发明人何建平,沈红梅,王建平. "A Process for Preparing High-Purity 2-Propynoicacid,3-(1H-pyrazol-4-yl)-" [P]. 中国发明专利, 专利号 CN 117167013 B, 授权公告日 2020-10-03.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2010, 2137, (6), 3318-3327.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2012, 165, 5672-5692.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 2-Propynoicacid,3-(1H-pyrazol-4-yl)- Using HRMS and NMR". Biomed. Chromatogr., 2020, 1616, 3756-3759.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2019, 1524, 8686-8716.