Sørensen M, Björnsson E, Lefèvre J P. "Method for the Synthesis of 6-Allyl-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid" [P]. European Patent, EP 3092639 A1, 2022-03-10.
Schröder R, Kowalski A, Johansson L. "A Process for Preparing High-Purity 6-Allyl-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid" [P]. European Patent, EP 3868692 A1, 2023-06-16.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 1776, 4270-4291.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2013, 1715, 1564-1576.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 6-Allyl-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2023, 621, 3593-3609.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2013, 1988, (5), 4456-4486.