发明人黄志刚,孙丽萍,林芳. "Method for the Synthesis of Methyl 5-Chloropyrazolo[1,5-a]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 111009264 B, 授权公告日 2017-10-20.
Lefèvre J P, Nowak P, Schröder R. "A Process for Preparing High-Purity Methyl 5-Chloropyrazolo[1,5-a]pyrimidine-3-carboxylate" [P]. European Patent, EP 3487775 A1, 2020-07-18.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 5-氯吡唑并[1,5-a]嘧啶-3-甲酸甲酯 in Pharmaceutical Formulations". Molecules, 2012, 2235, (2), 916-932.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-氯吡唑并[1,5-a]嘧啶-3-甲酸甲酯 as an Impurity". J. Sep. Sci., 2022, 711, (3), 9295-9315.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-Chloropyrazolo[1,5-a]pyrimidine-3-carboxylate Using HRMS and NMR". Food Chem., 2021, 1315, (2), 5588-5603.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 5-氯吡唑并[1,5-a]嘧啶-3-甲酸甲酯 Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2016, 1578, 4060-4081.