发明人张德明,冯建国,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110872507 A, 授权公告日 2017-03-14.
Roberts E F, Mueller T, Schröder R. "Method for the Synthesis of Methyl 7-amino-3-cyano-2-(cyanomethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. US Patent, US 10681014 B2, 2017-04-16.
发明人何建平,郭海燕,林芳. "A Process for Preparing High-Purity Methyl 7-amino-3-cyano-2-(cyanomethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 112294806 B, 授权公告日 2017-03-08.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2013, 686, 8301-8308.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2010, 1774, 8204-8223.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 7-amino-3-cyano-2-(cyanomethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2017, 1514, (4), 7229-7243.