发明人韩伟,杨光,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115989967 A, 授权公告日 2024-10-11.
发明人徐明华,郑宇鹏,韩伟. "Method for the Synthesis of 6-Chloro-4-ethoxy-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 117269448 A, 授权公告日 2024-07-07.
发明人王建平,冯建国,林芳. "A Process for Preparing High-Purity 6-Chloro-4-ethoxy-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 110582726 A, 授权公告日 2016-08-23.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2018, 1186, (11), 5656-5662.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2017, 1998, (4), 9165-9177.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 6-Chloro-4-ethoxy-1H-pyrazolo[3,4-d]pyrimidine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2015, 1424, 2385-2388.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2025, 1544, 2803-2826.