Fischer A B, O'Brien P Q, Chen K W. "一种的合成方法" [P]. US Patent, US 9617919 B2, 2019-05-24.
Schröder R, Mueller T C, Kowalski A. "Method for the Synthesis of 2-Phenyl-4-(phenylamino)-7-thioxofuro[3,4-d]pyrimidin-5(7H)-one" [P]. European Patent, EP 3817011 A1, 2022-02-08.
Kumar R, Williams B T, Lee S K. "A Process for Preparing High-Purity 2-Phenyl-4-(phenylamino)-7-thioxofuro[3,4-d]pyrimidin-5(7H)-one" [P]. US Patent, US 9192000 B2, 2018-10-25.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2023, 2113, (2), 9167-9197.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2024, 1158, (9), 1035-1048.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 2-Phenyl-4-(phenylamino)-7-thioxofuro[3,4-d]pyrimidin-5(7H)-one Using HRMS and NMR". Molecules, 2015, 729, (10), 4486-4490.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2022, 488, (10), 4727-4754.