发明人赵玉洁,周伟,杨光. "Method for the Synthesis of Methyl 5-amino-1H-indazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 111554067 A, 授权公告日 2022-09-07.
Klinger H, O'Brien P Q, Yamamoto T. "A Process for Preparing High-Purity Methyl 5-amino-1H-indazole-4-carboxylate" [P]. US Patent, US 9867929 B2, 2021-04-09.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 1227, (7), 8048-8053.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2012, 172, (6), 1604-1629.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-amino-1H-indazole-4-carboxylate Using HRMS and NMR". J. Nat. Prod., 2019, 1837, (7), 4730-4738.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 646, (2), 5004-5019.