发明人孙丽萍,朱建伟,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111660902 A, 授权公告日 2019-01-18.
发明人何建平,郭海燕,沈红梅. "Method for the Synthesis of tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate" [P]. 中国发明专利, 专利号 CN 113291394 B, 授权公告日 2024-07-04.
发明人胡光,唐晓军,朱建伟. "A Process for Preparing High-Purity tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate" [P]. 中国发明专利, 专利号 CN 112835037 B, 授权公告日 2023-11-27.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2016, 2209, (11), 502-511.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1485, 4507-4515.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl2-phenyl-4-(tosyloxy)-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate Using HRMS and NMR". Anal. Chem., 2020, 755, 8373-8384.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 1990, (10), 648-677.