发明人冯建国,郭海燕,胡光. "Method for the Synthesis of Isopropyl 2-(1-allyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 111453972 A, 授权公告日 2017-11-16.
发明人孙丽萍,高志强,林芳. "A Process for Preparing High-Purity Isopropyl 2-(1-allyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 109031581 B, 授权公告日 2021-12-25.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2017, 83, 6467-6474.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2020, 1374, 3274-3300.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Isopropyl 2-(1-allyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2025, 1592, 2197-2220.