Kowalski A, Martínez F, Schröder R. "一种的合成方法" [P]. European Patent, EP 3258673 A1, 2021-09-05.
发明人唐晓军,杨光,朱建伟. "Method for the Synthesis of Ethyl 3-(4-isopropylphenyl)-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116777709 B, 授权公告日 2023-09-12.
发明人黄志刚,郑宇鹏,周伟. "A Process for Preparing High-Purity Ethyl 3-(4-isopropylphenyl)-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 115258385 A, 授权公告日 2021-11-19.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2017, 2121, 8139-8161.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2014, 892, (8), 4239-4261.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-(4-isopropylphenyl)-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2011, 2347, (10), 9911-9927.