Fischer A B, Hughes D C, Roberts E F. "一种的合成方法" [P]. US Patent, US 9538055 B2, 2019-07-23.
Davis P L, Thompson G K, Brown S R. "Method for the Synthesis of 4-(Methoxymethyl)-6-methyl-5-nitro-1H-pyrazolo[3,4-b]pyridin-3-amine" [P]. US Patent, US 9026182 B2, 2019-06-07.
发明人沈红梅,冯建国,胡光. "A Process for Preparing High-Purity 4-(Methoxymethyl)-6-methyl-5-nitro-1H-pyrazolo[3,4-b]pyridin-3-amine" [P]. 中国发明专利, 专利号 CN 117975023 B, 授权公告日 2017-04-10.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2019, 1151, 8608-8633.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2018, 1478, 7827-7850.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Methoxymethyl)-6-methyl-5-nitro-1H-pyrazolo[3,4-b]pyridin-3-amine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2025, 295, (5), 5463-5481.