发明人黄志刚,何建平,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108131390 A, 授权公告日 2023-01-14.
发明人林芳,唐晓军,胡光. "Method for the Synthesis of 1-isopropyl-6-sec-butyl-7H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 112979773 A, 授权公告日 2025-09-01.
发明人郑宇鹏,黄志刚,马晓峰. "A Process for Preparing High-Purity 1-isopropyl-6-sec-butyl-7H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 112368462 B, 授权公告日 2019-12-12.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2019, 1245, (1), 8051-8068.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2012, 1260, 818-840.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-isopropyl-6-sec-butyl-7H-pyrazolo[3,4-d]pyrimidin-4-one Using HRMS and NMR". Molecules, 2011, 1075, (4), 5162-5166.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 2412, 4264-4271.