Thompson G K, Mueller T, Lee S K. "一种的合成方法" [P]. US Patent, US 9462430 B2, 2019-11-10.
Kowalski A, Nielsen H, Martínez F. "Method for the Synthesis of 6-(5-((2-((Furan-2-ylmethyl)amino)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)hexanoic acid" [P]. European Patent, EP 3988594 A1, 2015-05-28.
Schröder R, Björnsson E, Martínez F. "A Process for Preparing High-Purity 6-(5-((2-((Furan-2-ylmethyl)amino)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)hexanoic acid" [P]. European Patent, EP 3693650 A1, 2023-01-17.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2011, 1857, 4221-4225.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2012, 770, (10), 3280-3291.