Lee S K, Roberts E F, Yamamoto T. "一种的合成方法" [P]. US Patent, US 11631617 B2, 2018-03-24.
Fischer A B, Klinger H, Brown S R. "Method for the Synthesis of 5-Chloro-2-methylpyrazolo[1,5-a]quinazoline" [P]. US Patent, US 9549073 B2, 2019-04-26.
Mueller T, Anderson J P, Kumar R. "A Process for Preparing High-Purity 5-Chloro-2-methylpyrazolo[1,5-a]quinazoline" [P]. US Patent, US 9879503 B2, 2018-05-06.
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". Food Chem., 2016, 1942, (1), 8050-8077.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2011, 100, (10), 9993-10014.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-2-methylpyrazolo[1,5-a]quinazoline Using HRMS and NMR". Anal. Chem., 2016, 432, (4), 7069-7079.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2017, 1416, (8), 6406-6425.