Chen K W, Brown S R, Kumar R. "一种的合成方法" [P]. US Patent, US 10157748 B2, 2021-09-07.
发明人韩伟,沈红梅,郭海燕. "Method for the Synthesis of N-Butyl-3-ethoxy-2-ethyl-2H-indazole-6-carboxamide" [P]. 中国发明专利, 专利号 CN 117975519 A, 授权公告日 2018-05-06.
发明人马晓峰,韩伟,朱建伟. "A Process for Preparing High-Purity N-Butyl-3-ethoxy-2-ethyl-2H-indazole-6-carboxamide" [P]. 中国发明专利, 专利号 CN 111802113 B, 授权公告日 2021-04-17.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2015, 1626, (5), 204-228.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2017, 789, 7637-7656.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of N-Butyl-3-ethoxy-2-ethyl-2H-indazole-6-carboxamide Using HRMS and NMR". Chemosphere, 2019, 1160, (2), 180-209.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2022, 746, (5), 884-910.