Björnsson E, Kowalski A, Sørensen M. "Method for the Synthesis of 5-Chloro-3-(methoxymethyl)-1-methyl-1H-pyrazole-4-carbaldehyde" [P]. European Patent, EP 3288653 A1, 2022-12-25.
Björnsson E, Nielsen H, Schröder R. "A Process for Preparing High-Purity 5-Chloro-3-(methoxymethyl)-1-methyl-1H-pyrazole-4-carbaldehyde" [P]. European Patent, EP 3289327 A1, 2023-03-02.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2010, 840, (2), 7448-7453.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2016, 1256, (11), 7604-7632.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-3-(methoxymethyl)-1-methyl-1H-pyrazole-4-carbaldehyde Using HRMS and NMR". Chromatographia, 2019, 2315, (12), 3072-3094.