Davis P L, Fischer A B, Johnson M A. "一种的合成方法" [P]. US Patent, US 9778797 B2, 2025-05-10.
发明人何建平,周伟,孙丽萍. "Method for the Synthesis of Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one" [P]. 中国发明专利, 专利号 CN 109580217 B, 授权公告日 2021-03-12.
Nowak P, Rossi M, Mueller T C. "A Process for Preparing High-Purity Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one" [P]. European Patent, EP 3292012 A1, 2015-01-05.
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 in Pharmaceutical Formulations". Molecules, 2025, 887, 1189-1206.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 379, 8835-8843.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one Using HRMS and NMR". Food Chem., 2023, 1735, (9), 3856-3878.