发明人钱学锋,赵玉洁,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114621322 A, 授权公告日 2015-09-20.
Anderson J P, Thompson G K, Fischer A B. "Method for the Synthesis of 1,5,6-Trimethyl-1H-pyrazolo[3,4-b]pyrazin-3(2H)-one" [P]. US Patent, US 11462744 B2, 2025-02-20.
发明人钱学锋,林芳,朱建伟. "A Process for Preparing High-Purity 1,5,6-Trimethyl-1H-pyrazolo[3,4-b]pyrazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 114007363 B, 授权公告日 2021-03-16.
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". Molecules, 2019, 500, 8377-8397.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2023, 722, (10), 2768-2771.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 1,5,6-Trimethyl-1H-pyrazolo[3,4-b]pyrazin-3(2H)-one Using HRMS and NMR". Phytochemistry, 2023, 229, (2), 3561-3565.