Patel M V, Johnson M A, Kumar R. "一种的合成方法" [P]. US Patent, US 9706509 B2, 2024-01-27.
Schröder R, Patel M V, Hughes D C. "Method for the Synthesis of Ethyl 3-hydroxy-6-phenylpyridazine-4-carboxylate" [P]. US Patent, US 9158171 B2, 2020-11-20.
Schröder R, Nielsen H, Kowalski A. "A Process for Preparing High-Purity Ethyl 3-hydroxy-6-phenylpyridazine-4-carboxylate" [P]. European Patent, EP 3238957 A1, 2020-11-22.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2010, 1661, (5), 4891-4913.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2011, 2106, (1), 4631-4643.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-hydroxy-6-phenylpyridazine-4-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2010, 853, (2), 9160-9180.