Hughes D C, O'Brien P Q, Lee S K. "一种的合成方法" [P]. US Patent, US 9992554 B2, 2017-04-14.
Williams B T, Kumar R, Klinger H. "Method for the Synthesis of 1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea" [P]. US Patent, US 11166528 B2, 2022-09-24.
Williams B T, Yamamoto T, Fischer A B. "A Process for Preparing High-Purity 1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea" [P]. US Patent, US 11550036 B2, 2015-09-21.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2013, 593, 5819-5826.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2010, 1556, 8467-8485.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea Using HRMS and NMR". J. Agric. Food Chem., 2024, 2153, (7), 2258-2270.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2022, 1618, (6), 572-584.