发明人马晓峰,韩伟,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110990704 A, 授权公告日 2021-03-21.
发明人赵玉洁,冯建国,黄志刚. "Method for the Synthesis of 5,6-Dimethyl-1H-pyrazolo[3,4-b]pyrazin-3-ol" [P]. 中国发明专利, 专利号 CN 112085786 A, 授权公告日 2018-03-24.
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". Environ. Sci. Technol., 2020, 1498, (8), 3979-3991.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 987, 8139-8167.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 5,6-Dimethyl-1H-pyrazolo[3,4-b]pyrazin-3-ol Using HRMS and NMR". Chromatographia, 2017, 1255, 1569-1597.