发明人徐明华,林芳,罗永刚. "Method for the Synthesis of 2H-indazole-7-carbohydrazide" [P]. 中国发明专利, 专利号 CN 114785094 B, 授权公告日 2016-09-26.
Davis P L, Johnson M A, Lee S K. "A Process for Preparing High-Purity 2H-indazole-7-carbohydrazide" [P]. US Patent, US 11365056 B2, 2022-02-23.
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". J. Sep. Sci., 2015, 1469, (10), 9628-9644.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2016, 1657, 923-942.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2H-indazole-7-carbohydrazide Using HRMS and NMR". Anal. Chim. Acta, 2025, 1091, 1176-1203.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2012, 856, (9), 3413-3430.