Mueller T C, Sørensen M, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3143099 A1, 2017-02-24.
Anderson J P, Yamamoto T, Hughes D C. "Method for the Synthesis of 3-amino-1H-indazole-5-carboxylic acid" [P]. US Patent, US 11228261 B2, 2024-11-21.
发明人郑宇鹏,冯建国,高志强. "A Process for Preparing High-Purity 3-amino-1H-indazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112216857 A, 授权公告日 2020-05-22.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2010, 1236, (3), 3387-3406.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2013, 2400, (5), 2666-2675.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 3-amino-1H-indazole-5-carboxylic acid Using HRMS and NMR". Chemosphere, 2015, 2348, (11), 587-611.