发明人孙丽萍,周伟,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109628545 A, 授权公告日 2024-01-02.
Fischer A B, Stevens L M, Johnson M A. "Method for the Synthesis of 6-(Ethoxycarbonyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. US Patent, US 11864855 B2, 2024-03-01.
Kumar R, Brown S R, Anderson J P. "A Process for Preparing High-Purity 6-(Ethoxycarbonyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. US Patent, US 10667725 B2, 2022-08-01.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2022, 1612, 9171-9190.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2018, 2216, 4227-4246.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 6-(Ethoxycarbonyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2023, 2299, 7103-7129.