发明人胡光,罗永刚,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114552563 A, 授权公告日 2020-04-17.
发明人王建平,韩伟,杨光. "Method for the Synthesis of 2H-pyrazolo[3,4-d]pyrimidine-3,4-diamine" [P]. 中国发明专利, 专利号 CN 115625790 B, 授权公告日 2020-01-27.
Schröder R, Fischer A B, Roberts E F. "A Process for Preparing High-Purity 2H-pyrazolo[3,4-d]pyrimidine-3,4-diamine" [P]. US Patent, US 11106061 B2, 2021-06-27.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2024, 775, (4), 4593-4619.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 1624, 6649-6661.