发明人钱学锋,张德明,郑宇鹏. "Method for the Synthesis of 1-Methyl-4,5,6,7-tetrahydro-1H-indazole-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115248446 B, 授权公告日 2021-10-08.
发明人朱建伟,郑宇鹏,沈红梅. "A Process for Preparing High-Purity 1-Methyl-4,5,6,7-tetrahydro-1H-indazole-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117043838 A, 授权公告日 2016-02-12.
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. Nat. Prod., 2018, 1482, 3633-3659.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2010, 1767, 4498-4515.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-4,5,6,7-tetrahydro-1H-indazole-6-carboxylic acid Using HRMS and NMR". Talanta, 2014, 2033, (9), 6000-6025.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2025, 2130, (4), 1285-1314.