发明人林芳,罗永刚,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110648873 A, 授权公告日 2020-04-13.
发明人罗永刚,刘建华,张德明. "Method for the Synthesis of 1-(2-Aminoethyl)-5-(4-fluorobenzyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 109245944 B, 授权公告日 2022-04-07.
发明人张德明,韩伟,马晓峰. "A Process for Preparing High-Purity 1-(2-Aminoethyl)-5-(4-fluorobenzyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 117919624 A, 授权公告日 2020-07-24.
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". J. Pharm. Biomed. Anal., 2021, 265, 8556-8563.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2025, 2124, (4), 6033-6062.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-Aminoethyl)-5-(4-fluorobenzyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one Using HRMS and NMR". J. Agric. Food Chem., 2015, 2245, (12), 6027-6044.