Kowalski A, Martínez F, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3674109 A1, 2015-11-11.
Thompson G K, O'Brien P Q, Fischer A B. "Method for the Synthesis of 7-Hydroxy-2-methylpyrazolo[1,5-a]pyrimidin-5(4H)-one" [P]. US Patent, US 10402314 B2, 2025-09-08.
发明人赵玉洁,张德明,罗永刚. "A Process for Preparing High-Purity 7-Hydroxy-2-methylpyrazolo[1,5-a]pyrimidin-5(4H)-one" [P]. 中国发明专利, 专利号 CN 116749753 B, 授权公告日 2016-05-27.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2012, 1664, 9895-9913.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2017, 1918, (3), 9787-9799.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 7-Hydroxy-2-methylpyrazolo[1,5-a]pyrimidin-5(4H)-one Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 2105, (1), 3509-3519.