发明人林芳,沈红梅,王建平. "Method for the Synthesis of tert-Butyl 5-amino-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112619572 B, 授权公告日 2023-08-16.
Park J H, Fischer A B, Williams B T. "A Process for Preparing High-Purity tert-Butyl 5-amino-1H-pyrazole-3-carboxylate" [P]. US Patent, US 10512941 B2, 2024-05-27.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2010, 1072, (7), 7533-7548.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2021, 2045, (12), 3504-3519.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 5-amino-1H-pyrazole-3-carboxylate Using HRMS and NMR". Anal. Chem., 2016, 2322, 5438-5459.