发明人胡光,沈红梅,钱学锋. "Method for the Synthesis of ethyl 7-(3-aminophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate,HCl" [P]. 中国发明专利, 专利号 CN 113477689 B, 授权公告日 2019-06-12.
发明人孙丽萍,冯建国,张德明. "A Process for Preparing High-Purity ethyl 7-(3-aminophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate,HCl" [P]. 中国发明专利, 专利号 CN 109848508 B, 授权公告日 2024-05-14.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of ethyl 7-(3-aminophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate,HCl in Pharmaceutical Formulations". Phytochemistry, 2025, 572, (2), 3216-3225.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of ethyl 7-(3-aminophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate,HCl as an Impurity". Anal. Chim. Acta, 2025, 661, (12), 7539-7543.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 7-(3-aminophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate,HCl Using HRMS and NMR". J. Pharm. Biomed. Anal., 2014, 2301, 2123-2134.