Stevens L M, Davis P L, Schröder R. "Method for the Synthesis of Methyl 6-hydrazinylpyridazine-3-carboxylate dihydrochloride" [P]. US Patent, US 10190037 B2, 2018-02-03.
Davis P L, Park J H, Schröder R. "A Process for Preparing High-Purity Methyl 6-hydrazinylpyridazine-3-carboxylate dihydrochloride" [P]. US Patent, US 10310324 B2, 2021-04-17.
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". Phytochemistry, 2019, 2362, 1798-1815.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2023, 1832, (8), 859-878.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 6-hydrazinylpyridazine-3-carboxylate dihydrochloride Using HRMS and NMR". Chromatographia, 2017, 385, (3), 9378-9402.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2014, 1435, 651-662.