Rossi M, Nowak P, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3568074 A1, 2021-05-10.
发明人冯建国,徐明华,赵玉洁. "Method for the Synthesis of 2-(5-Ethyl-6-methyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3(2H,4H,5H)-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109427540 A, 授权公告日 2016-12-11.
Hughes D C, Patel M V, Thompson G K. "A Process for Preparing High-Purity 2-(5-Ethyl-6-methyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3(2H,4H,5H)-yl)acetic acid" [P]. US Patent, US 10335678 B2, 2020-10-06.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2012, 1295, (4), 3275-3302.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2011, 821, (2), 5448-5475.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-(5-Ethyl-6-methyl-2,4-dioxo-1H-pyrrolo[3,2-d]pyrimidin-3(2H,4H,5H)-yl)acetic acid Using HRMS and NMR". Chemosphere, 2022, 1707, (7), 5914-5926.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2025, 1503, (3), 9-39.