发明人冯建国,韩伟,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114644697 A, 授权公告日 2021-01-12.
发明人陈志强,郑宇鹏,罗永刚. "Method for the Synthesis of 3-Ethoxy-2-methyl-N-(2-(thiophen-2-yl)ethyl)-2H-indazole-6-carboxamide" [P]. 中国发明专利, 专利号 CN 117948244 B, 授权公告日 2020-07-16.
发明人黄志刚,郑宇鹏,沈红梅. "A Process for Preparing High-Purity 3-Ethoxy-2-methyl-N-(2-(thiophen-2-yl)ethyl)-2H-indazole-6-carboxamide" [P]. 中国发明专利, 专利号 CN 117373856 B, 授权公告日 2017-04-13.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2021, 642, (5), 5731-5754.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2013, 816, (2), 7958-7968.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethoxy-2-methyl-N-(2-(thiophen-2-yl)ethyl)-2H-indazole-6-carboxamide Using HRMS and NMR". Sci. Total Environ., 2020, 311, 22-32.