Mueller T C, Schröder R, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3229366 A1, 2017-04-15.
O'Brien P Q, Patel M V, Schröder R. "Method for the Synthesis of 2-Amino-7-((2-hydroxyethoxy)methyl)-6-(methylthio)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile" [P]. US Patent, US 10709820 B2, 2020-12-06.
发明人徐明华,郭海燕,张德明. "A Process for Preparing High-Purity 2-Amino-7-((2-hydroxyethoxy)methyl)-6-(methylthio)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 115993187 B, 授权公告日 2023-06-13.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2020, 1359, 1279-1293.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2015, 1507, 73-99.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-7-((2-hydroxyethoxy)methyl)-6-(methylthio)-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile Using HRMS and NMR". Chromatographia, 2010, 510, (5), 263-266.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2023, 392, 6238-6258.