Thompson G K, Johnson M A, Schröder R. "Method for the Synthesis of 4-Oxo-2-(pyrrolidin-1-yl)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. US Patent, US 9455410 B2, 2017-11-09.
发明人罗永刚,张德明,郑宇鹏. "A Process for Preparing High-Purity 4-Oxo-2-(pyrrolidin-1-yl)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 110758831 B, 授权公告日 2016-03-11.
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". J. Nat. Prod., 2015, 1811, (11), 3188-3199.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2020, 102, 7122-7151.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Oxo-2-(pyrrolidin-1-yl)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde Using HRMS and NMR". J. Chromatogr. A, 2022, 926, 9179-9195.