Fischer A B, Thompson G K, Stevens L M. "一种的合成方法" [P]. US Patent, US 10950768 B2, 2025-02-06.
发明人钱学锋,何建平,沈红梅. "Method for the Synthesis of 1-Methyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one" [P]. 中国发明专利, 专利号 CN 116130580 A, 授权公告日 2016-06-05.
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". J. Agric. Food Chem., 2024, 2182, 7274-7299.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2022, 2219, (7), 2607-2632.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one Using HRMS and NMR". Food Chem., 2014, 454, (5), 5158-5176.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2017, 1362, (9), 9054-9080.