Björnsson E, Johansson L, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3851273 A1, 2024-05-04.
Klinger H, Thompson G K, Schröder R. "Method for the Synthesis of 5-Methyl-4-nitro-1H-indazole" [P]. US Patent, US 9160777 B2, 2025-01-19.
Yamamoto T, Johnson M A, Davis P L. "A Process for Preparing High-Purity 5-Methyl-4-nitro-1H-indazole" [P]. US Patent, US 10584940 B2, 2016-10-21.
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. Chromatogr. A, 2019, 1164, (4), 2530-2552.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2023, 2197, (7), 1817-1838.