Kumar R, Mueller T, Stevens L M. "一种的合成方法" [P]. US Patent, US 9032589 B2, 2018-06-20.
发明人韩伟,唐晓军,何建平. "Method for the Synthesis of Ethyl 5-cyclopropyl-7-hydroxypyrazolo[1,5-a]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115814456 B, 授权公告日 2022-05-09.
发明人沈红梅,罗永刚,黄志刚. "A Process for Preparing High-Purity Ethyl 5-cyclopropyl-7-hydroxypyrazolo[1,5-a]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 111269687 B, 授权公告日 2022-09-18.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2011, 603, (10), 2401-2423.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2024, 1734, 7027-7054.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-cyclopropyl-7-hydroxypyrazolo[1,5-a]pyrimidine-3-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2020, 826, (7), 9004-9009.