发明人郭海燕,胡光,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110724084 A, 授权公告日 2020-10-25.
发明人韩伟,朱建伟,高志强. "Method for the Synthesis of 5-(Furan-2-yl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114038498 A, 授权公告日 2019-09-26.
发明人黄志刚,高志强,王建平. "A Process for Preparing High-Purity 5-(Furan-2-yl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111047900 B, 授权公告日 2018-02-04.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2020, 2290, (1), 442-466.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2010, 1999, (5), 2302-2325.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 5-(Furan-2-yl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid Using HRMS and NMR". Anal. Chem., 2010, 1763, (2), 5374-5378.